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Laurent Demanet appointed co-director of MIT Center for Computational Science and Engineering

Applied mathematics professor will join fellow co-director Nicolas Hadjiconstantinou in leading the cross-cutting center.

Laurent Demanet, MIT professor of applied mathematics, has been appointed co-director of the MIT Center for Computational Science and Engineering (CCSE), effective Sept. 1.Demanet, who holds a joint appointment in the departments of Mathematics and Earth, Atmospheric and Planetary Sciences — where he previously served as director of the Earth Resources Laboratory — succeeds Youssef Marzouk, who is now serving as the associate dean of the MIT Schwarzman College of Computing.Joining co-director Nicolas Hadjiconstantinou, the Quentin Berg (1937) Professor of Mechanical Engineering, Demanet will help lead CCSE, supporting students, faculty, and researchers while fostering a vibrant community of innovation and discovery in computational science and engineering (CSE).“Laurent’s ability to translate concepts of computational science and engineering into understandable, real-world applications is an invaluable asset to CCSE. His interdisciplinary experience is a benefit to the visibility and impact of CSE research and education. I look forward to working with him,” says Dan Huttenlocher, dean of the MIT Schwarzman College of Computing and the Henry Ellis Warren Professor of Electrical Engineering and Computer Science.“I’m pleased to welcome Laurent into his new role as co-director of CCSE. His work greatly supports the cross-cutting methodology at the heart of the computational science and engineering community. I’m excited for CCSE to have a co-director from the School of Science, and eager to see the center continue to broaden its connections across MIT,” says Asu Ozdaglar, deputy dean of the MIT Schwarzman College of Computing, department head of Electrical Engineering and Computer Science, and MathWorks Professor.Established in 2008, CCSE was incorporated into the MIT Schwarzman College of Computing as one of its core academic units in January 2020. An interdisciplinary research and education center dedicated to pioneering applications of computation, CCSE houses faculty, researchers, and students from a range of MIT schools, such as the schools of Engineering, Science, Architecture and Planning, and the MIT Sloan School of Management, as well as other units of the college.“I look forward to working with Nicolas and the college leadership on raising the profile of CCSE on campus and globally. We will be pursuing a set of initiatives that span from enhancing the visibility of our research and strengthening our CSE PhD program, to expanding professional education offerings and deepening engagement with our alumni and with industry,” says Demanet.Demanet’s research lies at the intersection of applied mathematics and scientific computing to visualize the structures beneath Earth’s surface. He also has a strong interest in scientific computing, machine learning, inverse problems, and wave propagation. Through his position as principal investigator of the Imaging and Computing Group, Demanet and his students aim to answer fundamental questions in computational seismic imaging to increase the quality and accuracy of mapping and the projection of changes in Earth’s geological structures. The implications of his work are rooted in environmental monitoring, water resources and geothermal energy, and the understanding of seismic hazards, among others.He joined the MIT faculty in 2009. He received an Alfred P. Sloan Research Fellowship and the U.S. Air Force Young Investigator Award in 2011, and a CAREER award from the National Science Foundation in 2012. He also held the Class of 1954 Career Development Professorship from 2013 to 2016. Prior to coming to MIT, Demanet held the Szegö Assistant Professorship at Stanford University. He completed his undergraduate studies in mathematical engineering and theoretical physics at Universite de Louvain in Belgium, and earned a PhD in applied and computational mathematics at Caltech, where he was awarded the William P. Carey Prize for best dissertation in the mathematical sciences.

Factbox-Who Is Still Working and Who Has Been Furloughed in the US Government Shutdown?

By Andy SullivanWASHINGTON (Reuters) -Hundreds of thousands of U.S. federal workers have been ordered not to report to work, while others have been...

WASHINGTON (Reuters) -Hundreds of thousands of U.S. federal workers have been ordered not to report to work, while others have been told to stay on the job during the U.S. government shutdown, which started on October 1.Here is an overview of who has been furloughed at major government agencies, based on their shutdown plans.The 2 million active-duty members of the military remain on duty.Roughly 55% of the Defense Department's 740,000 civilian employees have been furloughed, including those involved in training, procurement and administrative support. Civilians working on cybersecurity, medical care, weapons systems maintenance, intelligence and logistics are still working.DEPARTMENT OF HOMELAND SECURITYOnly 5% of the Department of Homeland Security's 271,000 workers have been furloughed, including those involved in research, planning, training, and auditing.Secret Service agents, immigration and border officers, airport security screeners, Coast Guard personnel, and Federal Emergency Management Agency emergency workers remain on the job.About 10% of the Justice Department's 115,000 employees are furloughed, mainly in administrative and policy roles.Prison guards, FBI agents, criminal prosecutors and other front-line law enforcement are required to work.The State Department has furloughed 62% of its 27,000 employees, including those awarding new grants and contracts.All U.S. embassies remain open, and those working on visas and passports will continue to do their jobs. All 74,000 employees of the tax-collecting Internal Revenue Service remain on the job through Tuesday, October 7. It is not clear how many would be furloughed after that.Outside of the IRS, Treasury would continue to distribute Social Security checks and tax refunds and service the nation's $37.5 trillion debt, while it would cease other duties, such as audits and government-wide accounting. Treasury does not specify how many non-IRS employees would be furloughed. DEPARTMENT OF HEALTH AND HUMAN SERVICESRoughly 41% of HHS's 78,000 employees are furloughed. The Centers for Disease Control and Prevention, where 2 out of 3 workers have been furloughed, is continuing its core outbreak response, but is not providing guidance to states and has paused much of its research and surveillance work.The Centers for Medicare & Medicaid Services has furloughed half of its employees and has paused much of its oversight work.The Food and Drug Administration, where 14% of employees are furloughed, continues safety-critical work like product recalls and import screening, but has paused research and is not accepting most new drug and medical device submissions.The National Institutes of Health, which has furloughed 3 out of 4 of its workers, has paused its research activity and is not issuing new grants, but continues patient care. The Commerce Department has furloughed 81% of its 43,000 employees.Employees of the National Oceanographic and Atmospheric Administration will continue weather forecasting, fisheries enforcement and other safety-critical activities, but 9 out of 10 NOAA employees will be furloughed, including those involved in research, grants and contracts and animal/laboratory maintenance.Most employees at the Census Bureau and the Bureau of Economic Analysis have been furloughed, which halts surveys, statistical releases and economic data publication.The 14,000 employees of the U.S. Patent and Trademark Office will remain on the job until funding from reserves and fees runs out.SOCIAL SECURITY ADMINISTRATIONMost Social Security workers are still on the job, with only 12% of the agency's 52,000 employees furloughed. That could change if the shutdown drags on, the agency says.Some workers at field offices and those handling benefit applications and appeals have been furloughed, while those who handle benefit payments are still working.DEPARTMENT OF TRANSPORTATIONRoughly 23% of the Transportation Department's 54,000 workers are furloughed, including those involved in research, policy and regulations.Air traffic controllers, safety inspectors and those overseeing highway and transit funds continue to work.NATIONAL AERONAUTICS AND SPACE ADMINISTRATIONNASA has furloughed 83% of its 18,000 employees, including those involved in research, public affairs, grants and contracts. Those involved with the International Space Station and satellites remain on the job.DEPARTMENT OF AGRICULTURESome 49% of USDA's 86,000 employees have been furloughed, including those handling grants and loans and those producing statistical reports.Food safety inspectors, Forest Service firefighters, workers responding to disease or pest outbreaks, and workers overseeing nutrition programs are still working.ENVIRONMENTAL PROTECTION AGENCYThe EPA has been hit hard by the shutdown, with 89% of the agency's 15,000 workers on furlough, including those involved in permitting, research and civil enforcement.Security guards, criminal investigators, and those involved in emergency response are still working.Roughly 87% of the Department of Education's 2,450 employees have been furloughed, including those involved in regulations, new grants, and civil rights investigations.Workers who distribute student aid and grants to low-income schools are still working.All but 5% of the FTC's workers have been furloughed, including those working on consumer protection investigations and antitrust review. Attorneys and investigators involved in ongoing litigation will keep working.SECURITIES AND EXCHANGE COMMISSIONLikewise, 91% of the SEC's 4,300 employees have been furloughed, including those reviewing corporate filings, oversight of investment advisers, and routine enforcement.Market monitoring teams and those handling urgent fraud matters will continue to work.SMALL BUSINESS ADMINISTRATIONRoughly 24% of SBA's 6,200 employees have been furloughed, including those who approve new loans and work on entrepreneurial development. Workers who handle existing loans and disaster loans continue to work.FEDERAL COMMUNICATIONS COMMISSIONSome 81% of the FCC's 1,300 workers would be furloughed, including those handling consumer protection and complaints, licensing services, equipment authorization and spectrum management. Those involved in spectrum auctions and critical security and technology would remain on the job. DEPARTMENT OF VETERANS AFFAIRSThe VA is largely insulated from a shutdown as most of its budget does not come from annual appropriations. Only 3.2% of the agency's 462,000 workers have been furloughed, including those involved in research, communications, and oversight. Medical workers and benefits administrators remain on the job. DEPARTMENT OF HOUSING AND URBAN DEVELOPMENTRoughly 67% of HUD's 6,100 employees are furloughed, including those issuing new grants and those involved in fair-housing investigations.Those handling Federal Housing Administration insurance and ongoing rental-assistance payments continue to work.Roughly 75% of the Labor Department's 13,000 workers are furloughed, including those involved in economic data reports and civil rights enforcement.Those involved in workplace safety, workers' compensation payments and unemployment insurance continue to work.Some 63% of the Energy Department's 15,500 employees are furloughed, including those involved in grant and research work. Those working on nuclear security, cybersecurity, and power safety continue to work.DEPARTMENT OF THE INTERIORThe Interior Department has furloughed 50% of its 58,000 employees, including maintenance and customer service workers at the National Park Service, fish biologists, and those handling new energy or land use permits.Teachers and other workers at the 55 schools run by the Bureau of Indian Education are still on the job. Law enforcement officers at national parks, wildlife refuge rangers, firefighters, and dam and power operators continue working(Reporting by Andy SullivanEditing by Bill Berkrot)Copyright 2025 Thomson Reuters.

Exxon delays planned plastics plant on Texas coast

The announcement comes six weeks after a judge struck down the local school district’s decision to give Exxon a tax break for the $10 billion plant in Calhoun County.

Sign up for The Brief, The Texas Tribune’s daily newsletter that keeps readers up to speed on the most essential Texas news. This story is published in partnership with Inside Climate News, a nonprofit, independent news organization that covers climate, energy and the environment. Sign up for the ICN newsletter here. Exxon Mobil will postpone its plans for a large new plastics production plant on the Gulf coast, according to the company. Construction was initially planned to begin next year on the $10 billion facility in rural Calhoun County. “Based on current market conditions, we are going to slow the pace of our development for the Coastal Plain Venture,” Exxon said in an emailed statement. “We’re confident in our growth strategy, and we remain interested in a potential project along the US Gulf Coast and in other regions around the world.” Six weeks prior, a county district court judge invalidated the local school board’s decision to negotiate a tax break agreement with Exxon, following a lawsuit from Diane Wilson, 77, and her group, San Antonio Bay Estuarine Waterkeeper. On Aug. 19 the judge ordered the school board to redo its public hearing on Exxon’s tax break after Wilson alleged the district provided inadequate notice of the meeting in “a deliberate attempt to avoid public opposition.” Wilson, an internationally known environmental advocate, promised to bring a large audience for the repeat hearing. “I think it definitely played into it,” Wilson said of Exxon’s pause. “I think if everybody had just rolled over for them, if they got exactly what they wanted and there wasn’t a big fight, there would be no delay.” Exxon, which reported nearly $34 billion in profits in 2024, was seeking a 50% reduction in its property taxes to the rural Calhoun County Independent School District for 10 years, beginning in 2031, when the project would come online. The world-scale plastics plant was planned to produce up to 3 million tons per year of polyethylene pellets for export, primarily to Asia, according to Exxon’s December 2024 tax abatement application. John Titas, president of the Victoria Economic Development Corporation in nearby Victoria, said he didn’t think Exxon’s decision was related to the tax break fight. “I think they’ve been very thankful for the support they received in the community,” he said. “It’s economics. To justify an investment of that magnitude, you’ve got to make sure the market will provide a return.” In Exxon’s latest statement, first reported last week by Independent Commodity Intelligence Services, an industry news service, the company maintained the possibility of resuming the project in the future. “We’re maintaining good relationships with community leaders and contractors, so we are ready to reevaluate the project’s status when market conditions improve,” it said. Exxon didn’t specify which market conditions would need to change. Most projections forecast strong growth in plastics demand over coming years. The economic intelligence firm Precedence Research expects markets for polyethylene, which the Exxon plant would produce, to grow 64% between 2024 and 2034, according to a June 2025 assessment. Another firm, Expert Market Research, expects overall plastics markets to grow 51% in that time. According to the Plastics Industry Association, “The global plastics industry continues to accelerate, backed by strong demand.” Wilson said the project’s delay marked the best news she’d heard since 2019, when she found out that her lawsuit against another nearby petrochemical giant, Formosa Plastics, would end with a settlement worth more than $100 million in penalty payouts, facility upgrades and cleanup projects. Credit: Dylan Baddour/Inside Climate News A retired shrimper and mother of five, Wilson learned her tactics of resistance over decades of radical activism in defense of Texas’ coastal bays, where four generations of her family have fished for a living. In 2023 she received the Goldman Environmental Prize, the leading global award for environmental activism. As soon as she heard about the new Exxon project, in December 2024, she said she leaped into action, involving herself in the various public processes she’s come to know about, including the school district tax break agreements. “How a community reacts is extremely important and it’s extremely important that you do it in the beginning,” she said. “Move fast and don’t let up.” Disclosure: The Victoria Economic Development Corporation has been a financial supporter of The Texas Tribune, a nonprofit, nonpartisan news organization that is funded in part by donations from members, foundations and corporate sponsors. Financial supporters play no role in the Tribune's journalism. Find a complete list of them here. The wait is over! The full TribFest program is here. Join us Nov. 13–15 in downtown Austin and hear from 300+ thinkers, leaders and change-makers shaping Texas’ future. TribFest gives you a front-row seat to what’s next, with 100+ sessions covering education, the economy, policy, culture and more. Explore the program. TribFest 2025 is presented by JPMorganChase.

Buildings Are Turning to 'Ice Batteries' for Sustainable Air Conditioning

Buildings in the U.S. are turning to ice batteries for air conditioning — a technology that freezes water into ice at night when electricity is cheap and lets it thaw during the day to cool indoor spaces

Every night some 74,000 gallons (280,000 liters) of water are frozen at Norton Audubon Hospital in Louisville, Kentucky. The hospital used to get all of its air conditioning from a conventional system found in most U.S. buildings, but now 27 tanks of ice sustain a network of cold-water pipes keeping operating rooms at safe temperatures and patients comfortable. This type of thermal energy storage, also known as ice batteries, is being added to buildings in the U.S. for its ability to provide cool air without releasing planet-warming emissions. These systems cut electricity usage and lower the strain on the grid. With rising temperatures and the growing demand for electricity in the U.S., ice thermal energy storage offers a sustainable option for cooling buildings. Trane Technologies, a company that makes heating and cooling equipment, says it has seen a growing demand for this technology over the past few years. Its ice batteries are mostly used in schools as well as commercial and government buildings. Nostromo Energy, another company that makes ice batteries, is pursuing customers among energy-intensive data centers that have high cooling demands. Smaller systems are also made for homes by companies such as Ice Energy. Tanks of ice thaw to create air conditioning Ice thermal energy storage technology varies between manufacturers, but each follows a similar concept: At night when electricity from the grid is at its cheapest, water is frozen into ice that thaws the next day to cool the building. The ice chills water that is circulating through pipes in the building, absorbing heat from the rooms and creating a cooling effect. Air cooled by the system is then pushed through vents. Norton Audubon Hospital uses a Trane ice battery system. Trane said its ice batteries are often used alongside traditional air conditioning, and the ice-based cooling is used to lower energy costs during peak demand times. The traditional AC components are typically left in place or downsized when ice batteries are added.The stored ice doesn't require energy to thaw, which reduces the strain on the grid and minimizes the building’s electricity usage, ultimately lowering monthly bills.“Storing energy for further uses is where we’re going with the future of the grid,” said Ted Tiffany, senior technical lead at the Building Decarbonization Coalition. He said access to air conditioning is a major public health need that is being exacerbated by a warming planet, and ice batteries are a sustainable way to address health risks associated with extreme heat.Energy costs at Norton Audubon were $278,000 lower for the first year the ice battery system was in operation after it was installed 2018. The hospital estimates that the system and other energy-saving measures have saved it nearly $4 million since 2016. “The technology has been awesome for us,” said Anthony Mathis, a Norton Healthcare executive who oversees sustainability. He said he receives inquiries from other building operators about the technology and thinks more facilities will adopt it as awareness grows. Using ice to meet growing energy demands Experts on sustainable energy say ice thermal energy storage is among the options commercial buildings can use to reduce electricity demand or store excess energy. Some commercial buildings use lithium batteries, which can store excess solar or wind energy that are available intermittently. Dustin Mulvaney, environmental studies professor at San Jose State University, said ice batteries are a sensible option for health care settings and senior homes because lithium batteries can pose a fire risk.Manufacturers also see opportunities in data centers, which are increasing in number to support artificial intelligence and have high energy and cooling needs. A December report from the Department of Energy found that data centers consumed more than 4% of the electricity in the country in 2023 and that number could grow up to 12% by 2028. “Data centers are very energy-hungry and about 30% to 40% of their energy use is for cooling … that’s where a solution like ours could really help,” said Yoram Ashery, CEO of Nostromo Energy. Nostromo Energy said it is discussing deals to install its systems with several large data center operators, but declined to provide further details. Its ice battery technology is also used at the Beverly Hills Hotel in California.California is currently the biggest market for this technology because the grid there uses a lot of solar power during the day but switches to polluting energy sources such as natural gas after the sun sets. Ice batteries can be used for air conditioning in the late afternoon and evening instead of drawing from the grid.“A lot of utilities are really interested in this type of load-shifting technology,” said Joe Raasch, chief operating officer at Ice Energy, another ice thermal energy storage company. He said summer is typically the most expensive time for utilities to operate because of the air conditioning demand. “It’s really great technology that the grid really needs because so much of the future electric load is driven by cooling,” said Raasch.The Associated Press’ climate and environmental coverage receives financial support from multiple private foundations. AP is solely responsible for all content. Find AP’s standards for working with philanthropies, a list of supporters and funded coverage areas at AP.org.Copyright 2025 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.Photos You Should See – Sept. 2025

Regulators know PG&E, Edison are slow to hook up solar. Why are there no penalties?

PG&E and Southern California Edison routinely blow their deadlines to hook up new solar panels, an advocacy group says. But after years of complaints they have not been punished.

In summary PG&E and Southern California Edison routinely blow their deadlines to hook up new solar panels, an advocacy group says. But after years of complaints they have not been punished. The state’s two largest utilities routinely drag their feet connecting solar panels to the electric grid, missing state-mandated deadlines as much as 73% of the time, according to a complaint filed to regulators by solar advocates. The complaint filed by a solar energy advocacy group urges the California Public Utilities Commission to hold utilities accountable when they fail to meet such deadlines. The commission is formally reviewing it.  The advocates have complained for years that such delays hinder California’s transition to renewables. State utility regulators are separately revisiting the process for connecting rooftop solar to the grid, including examining whether and how the utility commission should require utilities to comply with the timelines it established years ago. But the commission has yet to reprimand utilities for regularly missing these deadlines. “The rule is there, but the commission hasn’t chosen to enforce [it],” said Kevin Luo, policy and market development manager for the California Solar & Storage Association, a group advocating for the adoption of solar energy that filed the complaint. “The rule is there, but the commission hasn’t chosen to enforce [it].”Kevin Luo, California Solar & Storage Association When Californians add solar panels to their rooftops, they begin a complex “interconnection” process led by the utilities to ensure the array is correctly installed and able to provide power for both the customer and the grid, which receives power the customer does not use. For each interconnection step, the utility is allotted a certain amount of time, ranging from five business days to 90 calendar days. The timelines for several of the more extensive steps – including design, construction and installation – were clarified in a 2020 decision after solar panel owners complained that California’s major investor-owned utilities were blowing their deadlines.  The delays can have significant financial consequences for panel owners, widening the period after they have laid out money for solar cells but before they see a reduction in their power consumption or payments from selling excess solar power back to utilities. Pacific Gas & Electric, Southern California Edison, and San Diego Gas & Electric all report their compliance with these timelines on a quarterly basis. The reporting is for projects over 30 kilowatts, which are often for businesses, not residential homes, and account for the majority of solar projects. These data show that PG&E and Edison routinely exceed the allotted windows.  In the complaint, filed in late August, the California Solar & Storage Association noted the utilities take longer than permitted to connect customers between 19% and 73% of the time, depending on which stage of the process is examined.  For example, the utilities are given 10 business days to acknowledge someone’s request for interconnection – PG&E’s median time for this step was 20 days, with its longest being 245 days. One of the most crucial steps is a system impact study, which looks at how the addition of a customer’s solar array will affect the grid and identifies any potential issues with hookup. PG&E kept to its timeline 49% of the time, while Edison met its deadline 43% of the time, according to the complaint.  San Diego Gas & Electric typically meets its deadlines and wasn’t included in the solar association’s complaint about timeliness. PG&E spokesperson Mike Gazda responded to the complaint by stating that “PG&E is a strong advocate for solar energy and has interconnected nearly 900,000 solar customers—more than any other U.S. utility—to support customers who have made the choice to go solar, strengthen California’s energy grid and reduce our state’s carbon footprint. We look forward to addressing the latest claims made by the solar gorup through the appropriate regulatory channels.”  Edison spokesperson Jeff Monford said the company takes “complaints seriously and [is] working with the California Public Utilities Commission to thoroughly address any issues related to our interconnection processes.” Utilities have previously said that delays can be caused by permitting issues, unfamiliar new technologies, or other agencies needing to be involved.  So what happens when they break the rules?  The utilities commission declined to lay out specific penalties when it clarified the timelines in 2020. It rejected a recommendation from a working group including industry representatives and consumer advocates to “clearly indicate that financial penalties” could happen if a utility fails to meet the timelines on 95% of projects. “The commission must first determine whether timeline certainty is improving,” the decision said. Regulators could set out penalties in the future “if it determines such a construct would support timely interconnection.”  The commission declined to comment because the case is an “ongoing adjudicatory proceeding,” Adam Cranfill, spokesperson, said.   Without some kind of punishment, advocates argue, there’s not only no incentive for utilities to follow the rules, there’s a disincentive because of how the money flows. “From their perspective, solar and storage is competition for them,” Luo said. “Having people with their own solar and storage reduces the need to continually expand the grid and build out transmission lines.”  California’s rooftop solar industry has been mired in controversy in recent years because of the state’s “net energy metering” program, which governs how much utilities are required to pay solar customers for extra energy their panels generate. The program is meant to incentivize adopting renewable energy sources and offset the significant cost of rooftop solar, but utilities argued it creates an unfair cost burden for those without solar who pay more for costs such as grid maintenance. As a result, the current iteration of the program pays out significantly less than prior versions. Three environmental groups sued over the change, and the California Supreme Court ruled last month that the lower courts should reexamine the case’s details instead of deferring to utility regulators. 

South Africa’s Coast Is Rising—And Scientists Have a New Explanation Why

Human water management contributes to sinking land across the globe, and it may also be responsible for an unexpected rise

October 7, 20254 min readSouth Africa’s Coast Is Rising—And Scientists Have a New Explanation WhyHuman water management contributes to sinking land across the globe, and it may also be responsible for an unexpected riseBy Avery Schuyler Nunn edited by Sarah Lewin FrasierLand rising along South Africa’s coast may be closely tied to humans’ use of water. For decades geologists thought the slow rise of South Africa’s southern coast was driven by forces deep below—buoyant plumes of molten rock ascending through Earth’s mantle and heaving the crust upward over millions of years. But now satellite data and precise GPS measurements are tilting such assumptions off their axis. A study in the Journal of Geophysical Research: Solid Earth suggests this land rise may have less to do with deep tectonic forces and more to do with missing groundwater just under our feet.Human activity has long been depleting South Africa’s groundwater. In 2018, after grappling with severe droughts for years, the country came close to a full-blown water emergency when Cape Town was nearly the world’s first major city to literally run out of water—a scenario dubbed “Day Zero.” For several months that year the city’s residents faced the very real prospect of having to regularly queue for critically limited water supplies, an outcome staved off only by timely rainfall and intensive water-saving campaigns. The extreme shortage resulted from a combination of climate change and unsustainable water use, which drained surface reservoirs and placed mounting pressure on aquifers across the region.The recent study hypothesizes that the ground, once compressed by the sheer weight of the surface water and groundwater above it, is now expanding like a foam mattress relieved of pressure. Using GPS and satellite gravity data from between 2000 and 2021, the researchers detected a roughly six-millimeter rise in the land surface—a shift that coincides with humans’ depletion of South Africa’s water reserves and periods of drought.On supporting science journalismIf you're enjoying this article, consider supporting our award-winning journalism by subscribing. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today.“Sometimes the first explanation isn’t necessarily the right one,” says University of Bonn geodesist Christian Mielke, the study’s lead author. “Perhaps it isn’t plate tectonics after all.”That misunderstanding, not necessarily the rising land itself, may be the most striking thing about South Africa’s situation. What was once chalked up to the slow churning of Earth’s mysterious and inaccessible interior may instead reflect human activity, especially our management—or mismanagement—of water.“The presence of water, either as ice and snow on the land surface or as groundwater below, and the removal of that water are intimately tied to the deformation of the ground’s surface,” says Stanford University geophysicist Rosemary Knight. In most places around the globe, this process usually leads to sinking, called land subsidence, to fill the gap.But in South Africa, the new study suggests, that tie between water and land movement shows up in a surprising way. During the rainy season, rivers and reservoirs fill, adding weight that presses the crust down. In the dry months, much of that water either evaporates or gets pumped away, and the land rebounds upward. Over time the long-term loss of groundwater tips the balance toward uplift rather than sinking.This “seasonal breathing” is the giveaway that the cause is probably not solely a mantle plume. If molten rock were pushing upward, the motion would be steady, not tied to rainfall cycles. The expansion, if verified, could be yet another example of the ways human water use is reshaping the planet.From 1945 to 1970 more than 13,000 square kilometers of California’s San Joaquin Valley, once hailed as a “land of milk and honey” for Dust Bowl migrants, sank by at least 30 centimeters—and in some places by nearly nine meters. The San Joaquin sinking has only sped up since then, and parts of the valley drop more than 30 centimeters a year during severe droughts. On average, the pace has accelerated by 70 percent from the mid-20th century.Something similar is happening to the Chesapeake Bay, which, with its sweeping estuaries and lush tidal wetlands, is one of the U.S. East Coast’s most ecologically significant regions. Here land subsidence—driven by both groundwater extraction from aquifers and the lingering effects of ancient glacial shifts—is accelerating flood risk and relative sea-level rise. Satellite data, tide gauge records and projections from the Intergovernmental Panel on Climate Change suggest that by 2100 the combination of subsidence and sea-level rise could inundate up to 1,100 square kilometers of the Chesapeake Bay’s coastline.Mielke notes that such findings highlight the complexity of the planet’s response to human-induced environmental change. The consequences are still gradually being uncovered, and the implications may be profound. As climate change accelerates, land movements could exacerbate other challenges, especially in coastal areas with rising seas.To monitor such hidden shifts on a global scale, scientists use the GRACE satellite mission (Gravity Recovery and Climate Experiment) to detect changes in Earth’s mass by measuring minuscule variations in gravity. Because water has weight, depleting or replenishing groundwater subtly alters the planet’s gravitational field, which GRACE can detect from orbit.Knight and other researchers are looking for ways to keep land from shifting on such a vast scale by maintaining a careful balance. “Basically you get subsidence when water out exceeds water in,” Knight says. “And for water in, the term that’s used is ‘recharge.’”Some recharge happens naturally as rain or snowmelt soaks into the soil, but this precipitation isn’t enough to offset decades of groundwater extraction and current demand. That’s why places such as California are now turning to managed aquifer recharge: strategically spreading excess surface water (such as winter floodwaters) across land where it can percolate into the ground and rebuild depleted reserves, or injecting water directly into aquifers. Estimates suggest there is space underground for a total amount of water 30 times the volume of California’s Shasta Lake, enough to begin reversing the land’s descent.As Knight puts it, the solution can’t be about just cutting back on groundwater pumping. It must involve replenishment: restoring water to the ground from which it was drawn.It’s Time to Stand Up for ScienceIf you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in that two-century history.I’ve been a Scientific American subscriber since I was 12 years old, and it helped shape the way I look at the world. SciAm always educates and delights me, and inspires a sense of awe for our vast, beautiful universe. I hope it does that for you, too.If you subscribe to Scientific American, you help ensure that our coverage is centered on meaningful research and discovery; that we have the resources to report on the decisions that threaten labs across the U.S.; and that we support both budding and working scientists at a time when the value of science itself too often goes unrecognized.In return, you get essential news, captivating podcasts, brilliant infographics, can't-miss newsletters, must-watch videos, challenging games, and the science world's best writing and reporting. You can even gift someone a subscription.There has never been a more important time for us to stand up and show why science matters. I hope you’ll support us in that mission.

A Bay Area startup sold a plastic recycling dream. Neighbors call it just another incinerator

The Sonoma County company Resynergi says it will depart the state, just as Gov. Newsom sends CalRecycle back to the drawing board on potentially nation-leading rules governing plastic waste and plastic products.

In summary The Sonoma County company Resynergi says it will depart the state, just as Gov. Newsom sends CalRecycle back to the drawing board on potentially nation-leading rules governing plastic waste and plastic products. The plan sounded like a magic bullet from the future to solve one of the world’s most vexing environmental waste problems.  In Rohnert Park, just north of San Francisco, a startup company called Resynergi planned to use a form of “advanced recycling” to reuse plastic. Its process would chemically transform old plastic, blasting bits of it with microwaves until they turned into an oil that could then be used to make new plastic.  But the process – known as pyrolysis – was a hard sell to Sonoma County neighbors, who protested so much that the company withdrew its application and now plans to move out of state.  The fight that boiled over in Rohnert Park in recent months is a window into the tensions ahead for California as the state overhauls nation-leading regulations governing plastic pollution and packaging. (CalRecycle, formally known as the Department of Resources Recovery and Recycling, will hold a public hearing about those rules Oct. 7.)  While California is establishing some of the most forward-thinking plastic responsibility and recycling rules in the country, a dirty secret is that most plastic recycling methods are ineffective at best and illusory at worst.  Millions of tons of plastic go to the state’s landfills each year, and millions more are shipped to Southeast Asia, where plastic is rarely recycled. Instead it is illegally dumped, and often burned. Last year, Attorney General Rob Bonta brought suit against ExxonMobil for “perpetuating the myth … that you can recycle plastics, including single use plastics, and that it’s sustainable and good for the environment … It’s not true. It’s a lie.” ExxonMobil has since countersued Bonta for defamation. California’s regulators, meanwhile, are working to implement a 2022 state law that moves the state toward a circular economy for plastic – by making companies that produce packaging and single-use plastic items responsible for what happens to them after people throw them away. Those companies, along with environmental groups, have been weighing in as CalRecycle has been writing regulations, now years in the making.   Recent comments by Gov. Gavin Newsom suggest the state is aiming to strike a balance, finding a way to encourage recycling companies while hitting the state’s goals – all while avoiding more air pollution or other environmental impacts.  As for Resynergi, local and environmental advocates say that the way local, county, and regional regulators handled the company points up the challenges the state will face as it regulates plastic and defines whether and how it can be recycled.  “It does make me nervous, since it took seven years to get any enforcement on a facility that’s a two hour drive from the Capitol,” said Nick Lapis, advocacy director for Californians Against Waste.  A credible solution to plastic waste? Resynergi’s departure came as Sonoma County officials began to ask more serious questions about its operations, almost a decade after the company first arrived.  In 2017, company founder Brian Bauer chose Rohnert Park, a small, middle-class community surrounded by farmland, to develop and test his process. He set up shop in a development called SOMO Village – a 200-acre neighborhood with homes, a high school, and commercial space. Developers market it as a climate-conscious place, built to be carbon-neutral, which Bauer said was a draw for Resynergi.   In early conversations, according to Bauer, Sonoma County officials “suggested” his business could follow simpler recycling guidelines. Sheri Cardo, a spokesperson for Sonoma County’s Department of Health Services, confirmed the department had talked with Bauer about its operations as a recycling research and development site, and that his characterization was accurate.   In 2023, when Bauer sought to expand operations, he approached the city of Rohnert Park’s planning division for permits.  Officials told Bauer his facility was considered a heavy manufacturing site, and that Resynergi’s location – 600 feet from a school – demanded an environmental review, according to documents obtained by residents through a public records request. In a response late last year,  Resynergi argued that such a review could take too long, and moving quickly “could make or break substantial investment from a large strategic investor.” Within a month, planning officials had flipped and were now siding with Resynergi, granting it a more flexible, less burdensome administrative use permit. The decision avoided additional public review.  But to operate legally, Resynergi had to secure approval from county officials and the regional air district. In California, pyrolysis is classified as a type of incineration, associated with toxic and hazardous waste. Businesses must obtain a solid waste permit from local authorities, who enforce the state’s public resources code. In the past, three facilities have received permits to use pyrolysis, two for the purpose of destroying medical waste. All are now closed, according to CalRecycle. California counties issue waste permits on behalf of CalRecycle. The Bay Area Regional Air Quality Management District permits and controls pollution that microwaving plastic could produce. Resynergi’s microwave incinerator at 1200 Valley House Drive, in Rohnert Park, on Aug. 26, 2025. Photo by Chad Surmick for CalMatters County officials started looking into the company when they realized Resynergi’s plans would make the company a fully operational and “fixed component in the county’s waste system,” said Cardo, the county spokesperson.  “Although your facility might be considered a recycling facility in vernacular language, it is not under state law,” wrote Christine Sosko, Sonoma County’s director of environmental health. CalRecycle spokesman Lance Klug said in an email that Sonoma County’s response followed state standards. But environmental advocates say the way city and county officials handled Resynergi reflects regulators’ confusion about the processes for advanced recycling  – confusion fueled by the plastic industry.   Jane Williams, director of California Communities Against Toxics, argues that federal and state law make it clear that pyrolysis facilities have to follow rules as incinerators. “It’s really interesting for me to see, having worked on these incinerators for so long, how these guys pulled strings,” Williams said. “They pulled whatever out of their pockets so they could convince people this is a recycling facility.”  The American Chemistry Council, a trade group supporting the plastic industry, disagrees. And Resynergi’s Bauer said he doesn’t think his company’s process counts as incineration.  “Communities across California and the country are searching for credible solutions to plastic waste,” Bauer wrote in an open letter to the community. “This city has the chance to lead by example.”  Community fears toxic air pollution  People living in and near SOMO Village found out that Resynergi planned to burn plastic on a larger scale when the Bay Area Air Quality Management District notified the public of the company’s permit application. The community protested, filling city council rooms at each meeting and waving signs depicting polluting smoke stacks. Some parents spoke through tears to their city leaders. “Our air is not your experiment,” one poster read.  Among the local opponents of Resynergi was Stephanie Lennox. She lives about 20 minutes from Rohnert Park in rural Forestville, but her two daughters go to Credo High School right next to the facility. She wondered about emissions and the risk of an explosion.  “My Lord, don’t we need a solution to our global plastic pollution,” Lennox said. “But my daughters’ lungs are not part of your beta testing phase for your ‘world’s global plastic solution.’” Kirsten Van Nuys is hugged after addressing the city council at Rohnert Park City Hall to protest the recent operation of Resynergi’s microwave incinerator at 1200 Valley House Drive, on Aug. 26, 2025. Photo by Chad Surmick for CalMatters First: Resynergi’s microwave incinerator at 1200 Valley House Drive, in Rohnert Park. Last: Annabelle Royes, 9, stands in front of Rohnert Park City Hall to protest the operation of Resynergi’s microwave incinerator on Aug. 26, 2025. Photos by Chad Surmick for CalMatters Local organizers said they wanted city and county leaders to follow state law and the federal Clean Air Act.   When plastic is burned, additives like flame retardants or other chemicals that don’t break down can create toxic emissions, said Veena Singla, a researcher at the University of California San Francisco. Resynergi applied to the regional air district to obtain a permit for pollution control equipment in April, after the company had already begun operating their technology. In August, the air district issued three notices of violation to Resynergi for constructing and operating without a permit.  Bauer admitted to operating the equipment without a permit. The company never burned plastic in Rohnert Park he said; it did burn plastic at “prototype levels” in Santa Rosa. But, Bauer added, Resynergi was trying to follow the rules as he understood them. As a startup, he said, “you don’t even know if you will get a prototype to work. You’re also trying to figure out how the permitting process works.”  Millions spent to sway regulations Resynergi’s departure wasn’t because of a community outcry, Bauer said. The turning point, he said, was “the pull from other states; how they treated climate technologies such as ours …combined with the overall culture of accepting what we’re doing.” Plastics manufacturers and industry advocates like the American Chemistry Council have campaigned to redefine terms and loosen environmental regulations for the process Resynergi is developing. After the lobbying, 27 states have reclassified pyrolysis as manufacturing instead of solid waste operations, said Davis Allen, a researcher for the Center for Climate Integrity. That classification helps operators get around federal air requirements, he added.  Resynergi’s Bauer told CalMatters that “one of those (states) is a candidate,” and that the company will move out by the end of the year.    An analysis by the climate accountability newsletter HEATED found the chemistry council and groups aligned with it have spent as much as $30 million to promote the concept of advanced recycling as a mainstream and established one. That language aims to sway not just state laws, but federal clean air policy as well.   Between 2021 and 2022, when lawmakers were discussing plastic producer legislation, the American Chemistry Council spent more than $1.6 million on lobbying state legislators, according to publicly available data published by the Secretary of State. The American Chemistry Council’s Ross Eisenberg says that pyrolysis and other chemical recycling processes do work. These processes turn “hard-to-recycle plastics into the raw materials for high-quality products while reducing greenhouse-gas emissions and fossil energy use during production compared with virgin production,” he said.  “America’s plastic makers are investing billions of dollars to modernize and expand recycling capacity and improve efficiency,” Eisenberg said, adding that the companies are “advocating for smart policies that enhance collection and sorting so more plastics can be remade into new products.” This year, the Environmental Protection Agency said it isn’t taking further action on the matter, but industry representatives said they’ll continue to lobby at the federal level. Ambitious rules and tough realities for plastic California’s goals to reduce plastic pollution and make producers responsible for plastic waste are ambitious in size, scope, and speed. Within seven years, state law seeks to reduce plastic packaging by 25%, make single-use plastic packaging 100% recyclable or compostable, and divert most of that packaging into recycling.  Allen, from the Center for Climate Integrity, says laws like this can be a good idea – as long as regulators focus more on reducing plastics and less on recycling them.  “Almost any solution that is based on the idea that plastics can widely be recycled just isn’t really going to work,” Allen said. “There just aren’t easily available solutions to a lot of the problems that limit the effectiveness of recycling.” Single-use plastic bottles on a conveyor belt at greenwaste recycling facility in San Jose on July 29, 2019. Photo by Anne Wernikoff for CalMatters. But in March, regulations aimed at achieving the state’s goals were dealt a setback after two years of hearings. The day they were due, Gov. Newsom directed CalRecycle to start the regulatory process over.  The governor asked for changes “to minimize costs for small businesses and families – while ensuring California’s bold recycling law can achieve the critical goal of cutting plastic pollution,” said Daniel Villaseñor, a spokesperson for the governor, in an email to CalMatters. The Plastics Industry Association and the American Chemistry Council hailed the governor’s announcement as an opportunity. “We believe California’s regulations should be clear, technology-neutral, and performance-based,” said the council’s Ross Eisenberg. According to Klug, the CalRecycle spokesman, the state “remains committed to fostering business innovation that promotes a safe and clean future for all Californians.”  But environmental organizations like the Monterey Bay Aquarium and Surfrider called the decision disappointing.  Williams, the California Communities Against Toxics activist, said she’s concerned that more recent draft language may encourage pyrolysis facilities like Resynergi, which, she says, don’t belong in the state.    If California “rolls out the red carpet,” she said, “The only thing that will stop a whole new fleet of incinerators being built in California now is open, persistent community opposition.”  Resynergi also took part in CalRecycle workshops for the regulations. The company’s departure announcement praised the “innovative spirit of California … instrumental in the company’s growth.”  Brian Bauer said he’s hopeful the state plastic regulations will ease regulations for companies like his, but he plans to return to California either way.  “So it might be a couple years,” Bauer said. “We’ll be back to California in due time.”

This 'Clock' Could Warn of Hidden Stresses to Animals, Offering a Long-Sought Signal That a Population Is Nearing Collapse

The epigenetic clock measures biological age and could help scientists assess the health of polar bears, dolphins, baboons and other threatened creatures "while recovery is still possible"

This ‘Clock’ Could Warn of Hidden Stresses to Animals, Offering a Long-Sought Signal That a Population Is Nearing Collapse The epigenetic clock measures biological age and could help scientists assess the health of polar bears, dolphins, baboons and other threatened creatures “while recovery is still possible” The epigenetic clock is emerging as a wildlife conservation tool. Knowable Magazine Key takeaways: Epigenetic clocks as a conservation tool Conservationists have been searching for a biological marker to hint that an animal population is in distress so that they can address warning signs before a collapse becomes inevitable. A recent preprint study used epigenetic clocks, a marker of “biological age,” to find that polar bear populations are aging more quickly than previous generations did, suggesting melting sea ice is taking a toll on their health. Wildlife conservation is a race against time—too often, a losing one. Typically, by the time scientists detect signs of species decline, populations have already collapsed. Genetic diversity is already depleted. Birth rates have plunged. And by the time these biological red flags are seen, the window for effective intervention has nearly closed. That’s what happened with the passenger pigeon: Once the most abundant bird in North America, it vanished in the blink of an ecological eye—wiped out by unchecked hunting and habitat destruction before anyone realized how fast the population was unraveling. The same story played out with the Chinese river dolphin, the Pyrenean ibex and the Caribbean monk seal. Silent declines went unnoticed for years until the tipping point had passed, leaving conservationists to document extinctions instead of preventing them. And the northern white rhino? By the time the world finally paid attention, the damage was irreversible. Poachers had reduced the species to two surviving individuals—both female. Determined to avoid more preventable losses, scientists have begun hunting for molecular warning signs that appear before populations spiral. But early leads, such as stress hormones and the length of the specialized tips of chromosomes—telomeres—have proved fickle, too easily swayed by the daily chaos of life in the wild. That’s why many scientists are now pinning their hopes on a novel tool called an epigenetic clock. This molecular timekeeper doesn’t keep time like a wristwatch, though. Instead, it measures “biological age,” a hidden ledger that can echo the calendar’s count but also offers a more nuanced reflection of how fast an organism is wearing down from stress, disease and environmental hardship. Epigenetic clocks work by analyzing patterns of chemical tags called methyl groups that get added to or subtracted from DNA at predictable sites across the genome as animals grow older. Some of these methylation signatures are remarkably stable and tightly linked to aging across many species. And, crucially for conservationists, they can be read from a simple tissue or blood sample. In the lab, researchers analyze skin biopsies from Lahille’s dolphins to measure DNA methylation patterns—molecular marks that reveal both true age and signs of accelerated aging. Oceanographic Museum Prof. Eliézer de C. Rios / FURG, Southern Brazil That makes epigenetic clocks especially valuable for elusive or long-lived species, where accurate age data are often missing. Wildlife biologists are already using these clocks to understand the age structures of animal populations, offering insights into their reproduction, survival and longevity. But the clocks hold deeper promise. When an animal’s biological age runs higher than its chronological one, it can signal physiological strain—a kind of molecular distress flare that may go off before any visible signs of problems. The potential for detecting accelerated aging before a population begins to visibly collapse is what excites Colin Garroway, an evolutionary ecologist at the University of Manitoba in Canada. “Almost everything else we have is a lagging indicator of species decline,” he says. “This is at least potentially forward-looking.” Garroway’s confidence in the power of epigenetic clocks took shape through a study of polar bears from the Canadian Arctic. In work now posted on the preprint server bioRxiv, which has not yet undergone peer review, he and his colleagues found that bears born in recent decades are aging markedly faster than those from earlier generations—their biological ages outpacing their chronological ones. The likely cause, the researchers conclude: Longer ice-free periods are stranding bears on land, cutting off access to the seals that form the core of their diet, ultimately sapping the fat reserves they need to survive. “The change is too fast and too significant for them,” says co-author Evan Richardson, a polar bear ecologist with Environment and Climate Change Canada, the government agency that partially funded the study. That burden is then evident in the telltale molecular marks on the animals’ DNA. Richardson hopes the findings will force the “harder discussions” around polar bear management. But beyond sounding the alarm for this one imperiled species, he and his colleagues are hopeful that the wider conservation community will embrace epigenetic clocks as a proactive tool to safeguard biodiversity—before the point of no return. As Meaghan Jones, a University of Manitoba medical geneticist involved in the research, puts it: “This is a way to monitor populations in real time and see how stress is impacting them while recovery is still possible.” Clocking in The idea of tracking biological age through molecular changes first gained traction in studies of human DNA. Beginning in the early 2010s, biogerontologist Steve Horvath—then at the University of California, Los Angeles and now with the anti-aging biotech company Altos Labs—identified dozens and later hundreds of sites in the genome where DNA methylation tags were predictably gained or lost as people grew older. He used methylation patterns to construct a statistical model that could estimate a person’s age, launching the first epigenetic clocks. Horvath’s clocks emerged as powerful health indicators, with individuals whose biological age exceeded their chronological one showing a higher risk of chronic illness or early death—and that same logic, outlined in the 2025 issue of the Annual Review of Public Health, soon found a foothold in wildlife biology, too. Wild wood mice are helping scientists at the University of Edinburgh uncover how environmental factors such as food shortages and parasite infections accelerate biological aging. suffolk_jim / iNaturalist In 2021, for example, a team led by Jenny Tung, an evolutionary anthropologist now at the Max Planck Institute for Evolutionary Anthropology in Germany, developed a baboon-specific version of the epigenetic clock and applied it to a wild population in Kenya’s Amboseli basin. The researchers found that males with a high dominance rank tended to be biologically older than their lower-status peers, even when their chronological ages were the same. It was a compelling demonstration that the clock could connect ecologically relevant pressures to accelerated aging in a wild animal. And contrary to what might be expected—that social success would track with better health—it revealed the biological toll of dominance. “Attaining and maintaining high rank is costly,” Tung says. Other studies linking life stressors to accelerated aging would eventually follow—Garroway’s polar bear work among the most prominent—but most early adopters of epigenetic clocks for wildlife biology focused on a more basic goal: filling gaps in demographic data. Traditionally, estimating the age of wildlife involves methods such as tooth extraction to count growth rings, which is labor-intensive and intrusive. Epigenetic clocks, in contrast, require a small tissue or blood sample, often obtainable through remote methods like dart biopsies. From there, researchers extract DNA and use lab methods to read the methylation patterns known to change with age. Then, they apply statistical models to compare the patterns with animals of known ages. Inspired by the work of Horvath and others, wildlife biologists began adapting epigenetic clocks for the animals they study: humpback whales, lampreys, sea turtles, salmon. Then, in 2017, Horvath secured a $1.5 million grant to build clocks for a menagerie of species. Lions and tigers and bears Horvath began cold-emailing field biologists, zoo veterinarians and wildlife researchers, inviting anyone with blood, DNA or other archived tissues in their freezers to join the project. “Whoever had samples became a partner,” he says. Specimens poured in—for nearly 350 animal species in total, representing 25 of the 26 known taxonomic orders of mammal. Horvath generated clocks for elephants, bats, zebras, monkeys, marmots, mole rats and more. From this, he and his global network of collaborators built a universal mammalian epigenetic clock, one that factored in each species’ maximum lifespan alongside observable shifts in DNA methylation over time. The result was a clock that could accurately gauge an individual’s age, both chronological and biological, from a DNA sample—not just in humans or lab mice, but in otters, opossums and Tasmanian devils, too. Horvath’s main aim was to explore how aging unfolds across the animal kingdom and what accelerates the process—potentially uncovering antiaging mechanisms that might be replicated pharmaceutically. But there were clear applications for conservation, starting with filling in missing details about survival and reproduction in the wild. In Alaska, for example, wildlife biologist Susannah Woodruff, then with the United States Fish and Wildlife Service and now with the state’s Department of Fish and Game, turned to the pan-mammalian clock to estimate the ages of the state’s polar bears. Working independently of the Canadian team pursuing similar questions, she and her colleagues first ran samples through this “universal” clock and found it performed reasonably well, producing estimates within a year or two of the bears’ true ages. “That’s pretty good,” Woodruff says. Building a clock tailored specifically to polar bears was better still. Doing that required getting blood samples from known-age individuals—something not feasible for every species—but in Woodruff’s case, she had access to nearly 200 such bears. And as a head-to-head comparison published in July showed, the bear-specific clock yielded more precise and reliable results, pinpointing age to within plus-or-minus nine months. Epigenetic clock studies show that polar bears born in recent decades are aging faster than earlier generations, likely due to shrinking sea ice that limits their hunting opportunities and erodes fat reserves. Susannah Woodruff Short of developing a bespoke species clock, the next best thing can be to adapt one from closely related kin. That’s the approach taken to study the Lahille’s dolphin by conservation medicine veterinarian Ashley Barratclough of the nonprofit National Marine Mammal Foundation in San Diego. This vulnerable subspecies of bottlenose dolphin is found off the coast of South America, with fewer than 600 left in the wild. Few have reliable age records. Barratclough and her colleagues first created a clock for the common bottlenose dolphin, using blood and skin samples collected from known-age animals maintained by the U.S. Navy. In collaboration with Brazilian marine biologist Pedro Fruet, Barratclough then applied the tool to the genetically distinct Lahille’s dolphin, filling in demographic black holes that, among other things, identified reproductive-age females, thus providing a focal point for conservationists to target in their efforts to rebuild the population. “For an endangered cetacean species like the Lahille’s bottlenose dolphin, every piece of demographic information is extremely important to understand the future of the population,” says Fruet, founder of the conservation group Kaosa. “And the epigenetic clock tool is helping us to refine and get estimates that we couldn’t otherwise.” Notably, in Brazil’s Patos Lagoon, where the true ages of some Lahille’s dolphins are known, the tool also revealed signs of accelerated aging, notes Fruet—a finding he fears may reflect the impact of pollutants from industry and agriculture, among other stresses. Barratclough has documented similar effects in the Gulf Coast of Louisiana, where dolphins exposed to oil pollution from the 2010 Deepwater Horizon disaster appear to have aged faster than their counterparts living in cleaner waters elsewhere. Conservation biologists use remote dart biopsies to collect tissue from Lahille’s dolphins, a vulnerable subspecies with fewer than 600 individuals left in the wild. The samples provide crucial data on their age structure and reproductive potential. Pedro Fruet / Kaosa Worse for wear As evidence grows that epigenetic clocks can not only reveal true age but also flag premature aging, researchers are beginning to probe how environmental hardships shape the tempo of aging in the wild. At the University of Edinburgh, for example, evolutionary biologist Tom Little and disease ecologist Amy Pedersen are experimentally manipulating factors such as food availability and parasite load in wild wood mouse populations, then tracking the epigenetic fallout over time. “If you look at the human literature, we’ve got all these things—diet, stress, infections—that we know influence biological age,” Little says. “But in wildlife, we just don’t know what environmental features drive animals to be gray before their time.” Such research, however, requires running large numbers of samples through expensive molecular tests, and a major barrier to wider-scale adoption of wildlife clocks remains cost. The most commonly used testing platform—the Horvath Mammalian Array, based on Horvath’s research, manufactured by the genomics giant Illumina and sold by the nonprofit Epigenetic Clock Development Foundation—runs about $200 per sample, which adds up quickly when trying to analyze dozens or hundreds of wild animals. “It becomes very cost-prohibitive, especially in my budgetary world,” says Aaron Shafer, a population geneticist at Trent University in Canada who is studying whether epigenetic clocks can reveal premature signs of aging linked to chronic wasting disease, a deadly neurodegenerative illness affecting deer populations across North America. Shafer is spearheading the development of lower-cost, custom-built tests to make the technology more accessible for conservation use. In parallel, Garroway and Jones, together with Levi Newediuk, a wildlife ecologist at Mount Royal University in Canada, have been working on ways to streamline the use of epigenetic clocks in wildlife research so it can be applied in more species and settings. They also want to drive home the relevance of epigenetic clock data to policy decisions by connecting biological aging directly to habitat degradation. In their polar bear study, for instance, the researchers didn’t just document faster aging. They tied those biological shifts to tangible environmental change. Bears born in recent decades, as Arctic temperatures have risen, showed clear signs of accelerated biological aging, the scientists found. And unpublished follow-up analyses indicate that the effect plays out unevenly across regions, shaped by the distinct ecological pressures faced by each population of bears. According to Newediuk, the trend was most pronounced around Hudson Bay, where seasonal sea ice breaks up earlier and forms later than it once did, curtailing hunting opportunities and limiting access to seals. In contrast, bears from regions with more stable ice, such as those living near the Beaufort Sea and around other parts of the high Arctic, are aging more slowly. The findings, in other words, lend weight to long-standing concerns that vanishing sea ice isn’t just threatening the bears’ hunting grounds—it’s quietly eroding their biological resilience. “They’re in trouble, for sure,” Newediuk says. Fortunately for the threatened wildlife, accelerated aging isn’t necessarily a one-way street. As Tung’s investigation of baboons has shown, it can be slowed—potentially reversed. Tung found that when male baboons lost dominance rank, their epigenetic clocks seemed to slow down. In a couple instances, biological age even ticked backward as males fell in social status, despite the passage of time. That means the rate of aging is “not necessarily a fixed trait,” says Tung. And if it can be delayed in baboons, perhaps it can be rolled back in other species as well. “It opens the door to that possibility.”Knowable Magazine is an independent journalistic endeavor from Annual Reviews. Get the latest Science stories in your inbox.

UN plastics treaty chair to step down with process in turmoil

Exclusive: Luis Vayas Valdivieso says he is quitting for personal and professional reasons after reports of pressure behind the scenesThe chair of stalled UN plastics treaty talks, Luis Vayas Valdivieso, is preparing to step down, after accounts of behind-the-scenes pressure from the United Nations Environment Programme (UNEP).The move will be announced at a UN meeting on Tuesday, with an official announcement expected by Thursday. Vayas Valdivieso confirmed in an interview with the Guardian that he was resigning and said: “There have been some challenges in the process.” Continue reading...

The chair of stalled UN plastics treaty talks, Luis Vayas Valdivieso, is preparing to step down, after accounts of behind-the-scenes pressure from the United Nations Environment Programme (UNEP).The move will be announced at a UN meeting on Tuesday, with an official announcement expected by Thursday. Vayas Valdivieso confirmed in an interview with the Guardian that he was resigning and said: “There have been some challenges in the process.”In August, global talks at the UN headquarters in Geneva to agree on a treaty to deal with accelerating plastic pollution collapsed after three years of negotiations. There is currently no deal and the future of the agreement is unclear.The chair’s sudden resignation leaves the plastic treaty in an even more uncertain position, and raises questions around the governance of the process.Vayas Valdivieso faced criticism from NGOs and member states during the latest stage of the talks for releasing a draft text, which was rejected by the majority of negotiators and described by the UK’s head of delegation, the minister Emma Hardy as the “lowest common denominator”. Ghana said the text would “entrench the status quo for decades to come”.A section on plastic production limits from a previous draft had been removed, and there was no mention of hazardous chemicals in plastics. Text about addressing plastic pollution across the “full life cycle” from a previous draft had also been taken out.A second text, which was described as marginally better but still criticised for not being ambitious enough, came too late for an agreement to be formed. It was also rejected as the basis for continuing talks.Vayas Valdivieso said he had stepped down for both personal and professional reasons. He defended his work, saying that the treaty process had so far “achieved very important goals”. He added that the much-criticised first draft was never intended, in his mind, to be the final version.While some have criticised the chair’s leadership, concerns have also been raised that his work has been obstructed by UNEP, which is headed by the executive director, Inger Andersen. Sources told the Guardian and others that UNEP staff, who are supposed to be impartial, held a covert meeting on the final night of the negotiations, intended to coax members of civil society groups into pressuring the chair to step down.“I was at the meeting and I found it to be very problematic,” one of those who attended told the Guardian. They added that they only discovered the meeting was about the alleged “dissatisfaction with the chair” once already in the room, and felt uncomfortable being there.In a letter seen by the Guardian and confirmed by Vayas Valdivieso, he lodged an inquiry with UNEP asking for information about the gathering “whose focus was the chair’s management” of the process.He asked UNEP to take “measures to prevent similar situations” and also called for more transparency in the negotiations overall, saying: “This is a member [state]-driven negotiation, and I’ve been defending that, and will defend that, until the last day of my chairpersonship.”skip past newsletter promotionThe planet's most important stories. Get all the week's environment news - the good, the bad and the essentialPrivacy Notice: Newsletters may contain information about charities, online ads, and content funded by outside parties. If you do not have an account, we will create a guest account for you on theguardian.com to send you this newsletter. You can complete full registration at any time. For more information about how we use your data see our Privacy Policy. We use Google reCaptcha to protect our website and the Google Privacy Policy and Terms of Service apply.after newsletter promotionHe told the Guardian that although he was sad, his resignation was also an opportunity to bring “new blood, new initiatives, new ideas for the process”. He added that his decision to step down had nothing to do with what unfolded at the talks in Geneva.The Guardian has also reported on how petrostates and well-funded plastic industry lobbyists have worked to derail a deal to cut plastic production.Christina Dixon, an ocean campaign leader at the Environmental Investigation Agency (EIA), described Vayas Valdivieso’s resignation as “a stark reminder of the dysfunction that has plagued the plastics treaty negotiations from the beginning”. She said trust in the process had to be urgently be restored if there was to be any hope of reaching a meaningful outcome.A UNEP spokesperson said: “While UNEP has not been formally informed by the chair he plans to step down, the executive director wishes to thank Luis Vayas Valdivieso for his tireless service as chair of the INC process.” Commenting on the informal gathering, UNEP said the executive director “was unaware of any meeting until it was brought to our attention. This matter is now being handled in accordance with UN rules and regulations.”

When Is It Right to Kill a Wolf?

Usually, after a night of carnage, the phone rings early in the morning. It sounds first at the Departmental Directorate for Territorial Affairs, or DDT, in an eyesore of a governmental building on the outskirts of Digne, a small town nestled between the lavender fields of Provence and the sharp peaks of the Alps. The farmer on the line is usually distraught, recounting how many sheep were mauled and how the wolves attacked. Was there just one or a whole pack? Did they jump the electric fence, fight off the guard dogs? As the farmer tells his story, a government employee issues an alert, and the administrative procedure starts rolling.Sébastien Dubois takes it from there. As a royal wolf-catcher, Dubois is the latest in a centuries-long line of guardians entrusted by the rulers of France to rid the country of troublesome wolves. They did so in the 800s under the Emperor Charlemagne, and they do so in 2025 under the local prefects. Long gone are the gold-trimmed uniforms, the silver hunting knives, the throngs of hound dogs; now it’s technical outerwear, thermal cameras, high-tech rifles with night vision scopes—and tons of paperwork.Dubois starts his missions with paperwork, too. He does a background check: Does the farmer qualify for wolf-catchers’ protection? Does he have the appropriate authorizations? If all the boxes are checked, Dubois goes to the farm, sometimes hiking for hours to remote Alpine locations. He arrives long before sunset so that he can scout the terrain. He checks the weather, the direction of the wind, and the distance to the nearest woods. He checks the wolves’ tracks and the position of the neighboring houses. Then he waits.Often he stays out all night, always within 1,000 feet of the flock (the rules again). Usually, he hunts alone. He prefers it that way. It allows him to focus on the animal, immerse himself in its mind. “I shoot wolves, yes—that’s the job,” he told me. “But I respect them. We humans, we are fools compared to them. They are always one step ahead.”Most nights, he doesn’t fire a single shot. He strikes only when the wolves are close and about to attack. One time they were preparing to charge an exhausted sheepdog that had been barking up wolves every night for a week. “The dog was drained,” Dubois remembered. “It had lain down. And I saw the wolf; it was mid-attack. I think I shot it just before it pounced.”France is at a dangerous point. There is just too little land and too much bloody history for human-wolf relationships to be easily settled.With his slight frame, in jeans and a polo shirt, Dubois doesn’t look like someone you’d describe with the words “royal” or “wolf-catcher.” Yet over the last five years he has probably spent more than 100 nights hunting wolves, killing many. (He doesn’t like to keep count, he told me.) About 20 of those nights were at a farm owned by Julien Giraud, a stout, middle-aged man with a weathered face and hands cracked from years of fieldwork. When I visited in April, the place was postcard-perfect. Snowy peaks on the horizon framed rolling fields of shortly cropped lavender. The air smelled of dry grass and sun-heated soil. Dozens of sheep grazed behind an electric fence, watched over by a giant tan dog appropriately named Simba, Swahili for lion.The scene may have been peaceful, but Giraud’s voice was tense. Everything changed on June 16, 2019, he told me. More than 100 sheep killed in three nights—a massacre. When his daughter woke up for school, there were dead bodies all around the house. She was only four at the time. “It was horrible,” Giraud said. To protect the sheep, he started sleeping in his car, which he parked near the flock. In five months, he stayed home only a couple of times. He’s not sure why his wife hasn’t left him. “These dates are burned into my memory,” he said, and started to cry.That June, Dubois came over to Giraud’s farm many times. He slept in the car near the flock, too, so that Giraud could go home, get some rest. To the farmer, Dubois is a friend, a helping hand. Yet to many others, especially those on the political left, the wolf-catcher is a symbol of all things wrong: human dominance over nature, speciesism, pointless killings. There are about 1,700 wolf-catchers in France, and some have faced threats and hate mail, Dubois said. He asked me not to use his real name because he felt it would be too risky. He wanted to protect his family.Across Europe, conflicts over wolves have intensified in recent years, and the situation in France is particularly dire. You are either pro-wolf (protect it at all costs), or anti-wolf (get rid of it), with little in between. Fake news proliferates. Wolves have been used as a scapegoat for farmers’ struggles by French politicians, and as a bargaining chip during farmers’ protests. In the United States, tensions flared after wolves were reintroduced into Yellowstone National Park and then Idaho in the mid-1990s, after a decades-long absence. But there are less than half as many wolves in the contiguous United States and far more land. It’s possible to let them roam national parks and other nature preserves, where they’ll have little interaction with humans. “The situation in Europe is much more complicated,” said Dries Kuijper, a wildlife ecologist at the Polish Academy of Sciences. There’s just not enough space for humans and wolves to avoid each other. The land has to be shared.By the end of 2024, the Standing Committee of the Bern Convention approved the European Commission’s proposal to downgrade the wolf’s protection status at the international level, a ruling that went into effect in March 2025. In May, the EU changed another law, allowing member states greater flexibility in managing their wolf populations. And on September 23, the French government relaxed the rules governing when wolves may be shot. Starting in 2026, farmers will be allowed to kill wolves attacking their livestock without prior authorization—an announcement that was met with an outcry from environmental organizations. The changes are unlikely to fix the problem, however. In human-wildlife conflicts, of which European wolves are a classic case, “most efforts have focused on finding rational solutions,” said Alexandra Zimmermann, a conservation biologist at the University of Oxford. However, she pointed out, such conflicts don’t exist on the rational level alone; they go much deeper, into “the sense of not being heard, of identities clashing.” To her, France is at a dangerous point. There is just too little land and too much bloody history here for human-wolf relationships to be easily settled.In a world dominated by the inflammatory black-and-white discourse of social media, conflicts over wolves are a perfect tool to polarize people even further for political gain: to draw them, outraged, to one side or the other.While there are many human-wildlife conflicts across the globe, those involving wolves are among the hardest to solve, Zimmermann said. They have arisen in Wisconsin, in Montana, in India—and now, more frequently and perhaps intensely than anywhere else, in Europe. Humans have a long history with wolves, full of myths, stories, misunderstandings, and violence. The fact that our best friend, the dog, descends directly from the Big Bad Wolf only fuels this love-hate relationship. And in a world dominated by the inflammatory black-and-white discourse of social media, conflicts over wolves are a perfect tool to polarize people even further for political gain: to draw them, outraged, to one side or the other.The gray wolf appeared in Europe about 400,000 years ago, then crossed to North America over the Bering Land Bridge, which linked the continents during ice ages. The species was remarkably successful. Split into over 30 subspecies, from the bulky Yukon wolf to the slender Arabian, it has colonized the Northern Hemisphere. Roughly 40,000 to 15,000 years ago, some wolves became dogs, either because humans selected the docile ones as companions or because certain wolves domesticated themselves for easy access to leftover food.Things were more or less OK on the human-wolf front as long as Homo sapiens stuck to hunting and gathering. Once our ancestors started farming, though, wolves became a problem—especially considering that livestock was often guarded by children. Add rabies into the mix, a disease that makes wolves more aggressive, and it just went downhill. Sheep got killed. Kids got killed. So we told stories of Red Riding Hood, of the Three Little Pigs, teaching children that wolves are to be feared. “A lot of narratives have been built around that, and they are perpetuated to this day,” observed Ugo Arbieu, a social ecologist at the Paris-Saclay University.In ancient Greece, prizes for killing wolves were offered as early as the sixth century BCE. In Rome, hunters called luparii scattered poisoned meatballs to rid the countryside of wolves, but the practice was likely uncommon. At the time, the wolf was often admired in Europe. The Romans believed the founders of their city were nursed by a she-wolf. Then Christianity changed everything with its idea of Jesus as the lamb of God. The wolf became a symbol of evil, a threat to the holy flock—and the hunting began in earnest.The institution of the royal wolf-catcher was created in France by Emperor Charlemagne, a devout Christian. Depending on whom you ask, it happened either in 812 or 813, which makes wolf-catchers one of the oldest branches of the French administration. The position was paid: first in grain from royal coffers, then in bounty collected from villagers for each beast killed, a practice that soon led to abuses and conflicts. The hunts were often grand affairs, with horses, packs of dogs, horns, and nets. Some wolf-catchers had at least a dozen servants, including, at one point, a baker for the hunting dogs’ bread. By the dawn of the French Revolution, the institution cost the country dearly: the equivalent of five years of a mason’s salary to kill a single wolf. And so it was abolished. Napoleon brought wolf-catchers back, but with more regulation. In 1815, for instance, the official uniform was decreed to be blue, with velvet cuffs trimmed in gold and yellow metal buttons embossed with a wolf. The position was strictly voluntary.By the 1930s, effectively no wolves were left in France, however, and very few in the rest of Europe. (In the lower 48 U.S. states, wolves were nearly decimated by the 1960s.) They were driven to extinction by habitat loss, poaching, and, yes, wolf-catchers. Yet bizarrely, the positions survived, as wolf-catchers took to chasing deer off crops instead. The only thing wolf-related was their name—and the buttons on their uniforms.Contrary to rumors circulating online, the government didn’t release the wolves, they returned on their own. Once legal protection was introduced in 1979 under the Bern Convention, and then in 1992 under the Habitats Directive, the wolves that still survived in pockets of Europe, in Italy, in Poland, in the Balkans, returned to their old territories. A single wolf can settle more than 900 miles from its birthplace. “We’ve found wolves that were born in Croatia, traveled through Slovenia and Austria before settling in Italy, in only 98 days,” Arbieu said.There are now more than 20,000 wolves across 23 EU countries. (In the contiguous United States, there are around 8,000.) In France, the official number for 2024 was 1,013, up from zero in 1991. Yet Adrian Treves, an environmental scientist at the University of Wisconsin-Madison, doesn’t like such precise numbers. “To give the public one number is to treat the public like idiots,” he explained. “We never know the exact number of wolves. Never.”Wolf packs are fluid; individual wolves join and leave, walking long distances. Their nighttime habits and their tendency to avoid humans make counting them hard. To get some idea of the numbers, scientists use camera traps, which take photos of passing animals, track wolves via radio collars, and genetically sample wolf poop. In the winter, they use snow-track surveys, following paw prints in the snow. And in the summer, to count the litters of pups, they howl.Jérémy Lopez, the head of the pastoralism unit at Digne’s Departmental Directorate for Territorial Affairs, whose name fittingly derives from Latin for wolf, found himself in the middle of a howling survey in 2019. “It was very strange,” he told me. There were several teams trained to imitate wolves, spread out across Alpine slopes. After the sun set, the humans started howling, each person going on for about 30 seconds. Lopez joined, too. “It looked like a bunch of people hanging about trying to sound like wolves, with traffic cones for megaphones,” he laughed. Then, the wolves responded: first one pack, then another. “We ended up in the middle of two packs answering each other, and that went on for like 45 minutes,” Lopez said. It was at once silly, awesome, and humbling.While howling surveys may seem bizarre, they are commonly used to count wolf packs and their litters. Although the howls of adult wolves blend together into one voice, the pups can’t howl, and yelp instead. Such yelps can be counted, giving researchers an idea of how fast the animals are breeding.And they do breed fast, at least in Europe. The numbers of wolves across the continent, as imprecise as they may be, are up more than 50 percent over a decade. In Germany, between 2015 and 2023, the number of wolf packs increased over four times. For some, that breeds fear. What also breeds fear are media reports on wolf attacks, many of them inaccurate. A 2021 study by Arbieu and his colleagues found that articles in which the victim was allegedly bitten by a wolf tend to be more misleading—the headlines exaggerated and sensational—than those describing dog attacks.Elia Pergolizzi, a cattle farmer with large blue eyes and a large crease between them, doesn’t hide her fear of wolves. Since the attacks on her farm, which is north of Digne, started several years ago, she dreams of wolves, of hunting. “It’s fascination mixed with terror,” she said. As we talked over coffee at her wooden dining table, Pergolizzi kept getting up and walking to the wall of windows overlooking a gently sloping Alpine meadow beyond her house, dotted with rust-colored cows. Her daughter was playing out there on her own, and Pergolizzi was worried. With wolves, you just never know.Over the past decades, no humans were killed by wolves in Europe. That’s not to say it couldn’t happen. Europeans did fall victim to wolves’ jaws in the past, as evidenced by data from parish death registries. There were plenty of legends, too, such as that of La bête de Touraine, a monster of a wolf that supposedly terrorized France sometime in the late seventeenth century. It was said to have devoured more than 250 people.Folktales aside, such a fate likely wasn’t common. French historian Jean-Marc Moriceau calculated, based on public and private archive records, that wolves in France claimed only about 18 victims per year over five centuries, starting in 1575. What’s more, research suggests that rabies, which was widespread in seventeenth-century France, might have been responsible for many of the attacks—and tales of monster wolves. Yet France has been rabies-free since 2001, and the disease is now very rare across the rest of Europe, too. No rabies, no monsters.While modern Europeans are unlikely to fall victim to wolves, that’s not the case for their livestock. In 2023, wolves killed more than 10,000 farm animals in France, about a fifth of the total number of those killed across the union. That’s between two and three sheep, cows, or goats per wolf—and much more than claimed by their American cousins. (In Montana, which has an estimated wolf population of 1,096, only 31 cattle and sheep were killed in 2023.)Yet, taken alone, these numbers still don’t explain the ferocity of the European war on the wolf. For one, in absolute terms, 56,000 mauled farm animals is not that much—there are 271 million livestock in the EU. And two, farmers do get reimbursed for their losses. “Per sheep, it’s now somewhere around 260 euros,” Lopez said, “which is in general above market value.” The government also pays for indirect damages: the loss of genetic material, the stress to the rest of the flock that can result in miscarriages or lower output of milk. In 2024, wolves cost the French government about 43,000 euros per wolf in compensation to farmers and grants for livestock protection measures, such as electric fences.Julien Giraud appreciates the compensation he gets for the sheep he loses to wolves. Yet he believes that all this talk about money misses the point. “People say, ‘You’re compensated—what are you whining about?’ But until you’ve experienced it, people can’t understand,” he said. For him, it’s about the trauma of seeing your sheep gutted and bleeding all over your fields. It’s about having to finish them off to end their suffering. It’s about feeling alone with that trauma and about no one listening, really listening. It’s about governments making decisions up there in Paris and Brussels and pushing them onto farmers like him. “It’s not about the money,” he told me, shaking his head.Between 2022 and 2024, farmers’ frustration erupted into protests across Europe. In Switzerland, to decry the return of the wolf, farmers dumped dead sheep in front of a government building. In the Netherlands, they performed mock wolf hangings. In western France, pro-wolf protesters faced anti-wolf protesters. The protests weren’t just about the wolves, of course. In each country, the reasons behind the unrest were different, but there were common threads: discontent with low food prices paired with high price tags for fertilizer and feed, concerns about cheap imports of farm products from outside the EU, resentment over tightening environmental rules, and, above all, frustration with low incomes. “Farmers feel that they are stuck in liberalized markets on which they have to produce for the lowest price possible,” explained Jeroen Candel, a political scientist at Wageningen University in the Netherlands. “They have relatively little bargaining power vis-à-vis retailers and food processors.”Two triggers for the protests were the new Common Agricultural Policy, formally passed in January 2023, and the European Green Deal. In order to make the continent’s agriculture more planet-friendly, these policies required farmers to set aside more land to support biodiversity, rotate crops, and reduce pesticide use, all while adding red tape. To many farmers, it sounded like making a tough life even tougher.As Europe was due for elections to the European Parliament in June 2024, favorable policies were exchanged for electoral support, Candel said. Environmental legislation turned into “a new political cleavage both within the member states and in Brussels, where especially the conservatives and right-wing groups portray the Green Deal as a leftish, elitist project,” he said. A study of German online media revealed that the far-right populist party Alternative for Germany, or AfD, made the wolf its campaign issue. In readers’ comments, being anti-wolf was strongly linked to anti-EU sentiments and to a belief in conspiracies by “elites,” such as scientists falsifying data to encourage nature protection. In 2019, Julia Klöckner, then a minister of agriculture from the German Christian Democratic Union party, called the wolf “a campaign booster for the AfD.” The predator became a symbol of an urban hobby that threatens farmers’ livelihoods, a symbol of left versus right, of nature versus human. “Wolves are very high in symbolism,” said Fabien Quétier, the head of landscapes at Rewilding Europe, a nonprofit.The EU changed the law to make killing wolves easier apparently to placate farmers and preserve “rural livelihoods.” Some critics said that the move was not really about the farmers, but the result of a personal vendetta of Ursula von der Leyen, the European Commission president, whose beloved pony, Dolly, was killed in 2022 by a wolf in Beinhorn, Germany. Later, von der Leyen was quoted as saying that European wolves had “become a real danger for livestock and potentially also for humans.” Many researchers and environmental NGOs were appalled by the weakened protections, calling them a “major blow to science.” Wolves are not the enemy, they said—they bring important benefits to both nature and humanity. Take road accidents, for example. A study in Wisconsin showed that wolves make roads safer: Their presence in the state reduced collisions with deer by almost a quarter. It’s not simply that wolves eat prey so that there are fewer deer caught in literal headlights. With large predators around, the prey “start behaving differently,” Kuijper said. Deer, moose, and boars have to be on a constant lookout, which also includes paying more attention while crossing roads.Fear also forces prey to avoid spots where they may be exposed to danger, with benefits to biodiversity. “If you don’t have any predators, deer can just walk wherever they like, and they go to the places with the best food. Once you add a predator to the system, they don’t do that anymore,” Kuijper said. As a result, some parts of forests are intensely browsed by deer, while others are left to flourish. In Wisconsin, one study showed, areas inhabited by wolves are particularly rich in shrubs and wildflowers, from honeysuckles and hazelnuts to bog orchids and bluebead lilies. The differences are obvious to the naked eye: Compared to forests teeming with wolves, areas without them look as if someone had mowed down the vegetation.Yet the problem with downgrading protection of wolves, critics say, is not simply that these predators benefit ecosystems; it’s also that killing them often does little to actually protect farms (even if you wiped them all out, other predators would likely replace them). Slovakia is a case in point. A study in this central European country found no relationship between the number of wolves hunted down and the number of sheep lost by farmers. In France, the results of similar studies were mixed. On three sites, killing wolves brought the desired effects (sheep spared); on five sites, there were no effects; and on one site, the hunting actually backfired, with more livestock devoured by wolves.That is less impossible than it may seem. Wolves hunt best when they do so in large, intact packs. Kill a few individuals, and the packs break up, making the remaining wolves less efficient. “Like in a sports team, if you remove one or two members, the team will not function as it used to,” Treves said. Livestock make for easier prey than wild animals do, and so that’s what the wolves from broken packs go for.Scientists and NGOs argue that instead of simply killing wolves, we should focus on nonlethal control options, such as electric fencing, guard dogs, and shepherds. “If you don’t protect livestock, you can forget about preventing conflicts with wolves,” Kuijper said. One effective technique is fladry—a rope with flags that flutter in the wind, scaring off wolves. Electric fencing works, too, but it cuts through landscapes, preventing wildlife from moving freely. To complicate matters, wolves are fast learners. Fences can be jumped over or dug under. In one study, fladry worked for two months, and then it didn’t: The wolves figured out thxat it was just flapping cloth.Jérôme Bach, a livestock farmer north of Digne, believes that if you want to protect livestock, guard dogs are a great option. “You have to have dogs. If you don’t, the wolves will realize quickly it’s an all-you-can-eat buffet,” he said. A decade ago, Bach quit the circus where he worked as a juggler, took his beloved sidekick, a border collie, and started herding sheep. He liked the idea of being alone in nature. Now he is still in nature, but less alone. He lives with his wife and four kids on a farm in a community where everyone knows each other. He breeds guard dogs for local farmers and assists with training.On the day I visited, Bach’s barn smelled of fresh hay. Among a group of brown goats, three cream Anatolian shepherd puppies played with an empty bucket, their thick legs uncertain on a carpet of straw. They were born here, right within the herd. To be a good guardian, Bach tells me, a dog has to identify with the herd—not as a sheep or as a goat, but as their family. “Before his eyes even open, he hears the sounds of sheep, the sounds of goats, and he smells them,” Bach said. The dog gets attached to livestock, and his protective instincts, hardwired within the breed, kick in. If one day a wolf approaches the herd, the dog will feel the sheep’s distress—and he will do anything to protect them. One time, Bach heard sheep bells in the middle of the night, going off in every direction. He jumped out of bed and ran outside in his underwear. “The dogs were going wild,” he said. They barked, and they won. The wolves gave up.Yet guard dogs are not a perfect solution. The wolves often outsmart them, tricking the dogs to follow one predator while the rest of the pack attacks in a different spot. In direct combat, the dogs lose. They bother neighbors. They attack hikers. What’s more, they cost a lot of money and time. “It adds a lot of work. It’s really restrictive for us. And we already have a lot to do,” Bach said, shaking his head. Bach, like Giraud, like Pergolizzi, simply feels tired. Tired and ignored. “I’m worn out, both physically and mentally,” Pergolizzi said.For Zimmermann, these feelings—the exhaustion, the frustration, the sadness—mean that the whole discussion of the pluses and minuses of different methods of controlling wolves misses the point. It’s not about the efficacy of fladry versus fencing, or whether shooting a certain number of wolves would limit attacks. Using ideas from peace-building, Zimmermann and her colleagues identified three levels of human-wildlife conflict. The first, and the mildest, is when things are just beginning to stir, when people are still willing to talk, and practical measures such as fencing can fix the problem. That’s where human-elephant conflicts in northeast India stand. At level two, the waters become muddier: Some hurtful things were said in the past, other things were not done, and resentment is growing. At level three, the conflict becomes about identities, not animals. You know when you’ve hit level three when people start using polarized language, when they talk about threats to their way of life, about not being heard. “There is deliberate blaming of each other, hostility, completely different realities,” Zimmermann said. That’s wolves in Europe. “Wolves do seem to be an extreme case, where they’re more polarizing than any other wildlife that we’ve studied,” Treves observed.Trying to solve a level-three conflict as if it were a level-one may be self-defeating. Rational fixes come naturally to conservation scientists, Zimmermann said, but you may end up stomping on that sense of not being heard. Say an NGO turns up and tells farmers that it’s found the perfect new solar fence that is going to solve all their problems—“They will not be impressed. It’s clumsy,” she said. “The farmers might feel that they have not been heard on this, that they are always being told what to do by the scientists.” This may also explain why research shows that compensation for wolf-inflicted damages often does little to increase acceptance of these predators, and sometimes even adds fuel to the fire. “In decision-making circles, they look down on us,” Pergolizzi said. “Because for us, this is our life. It’s not just a financial matter. It’s not just, ‘Oh, I lost an animal, and it cost me this much.’ I don’t care about that—they paid me for it. It’s not about the money. It’s about physical and psychological integrity. And it goes deep. It goes very, very deep.”Pergolizzi is not your stereotypical right-wing farmer. She is anti-pesticide and worries about climate. Her house is dotted with organic products. She produces meat, but tells people to eat less of it: In her view, meat should be nature’s gift, celebrated on special occasions. In the wolf debate, she feels she is caught in between the conservative rural right and the green urban left.She didn’t believe in shooting wolves—until a few years ago, that is, when she saw one of her pregnant cows disemboweled by wolves. The cow was still alive, licking her dead calf. “I had a lot of nightmares after that,” she said. Last year, the attacks started again, even though she changed her farming practices and built a shed where the cows could calve indoors. And so she called DDT in Dinge, and a wolf-catcher came. He stayed one night, then another. He observed. It was always the same pack, and the same wolf that would initiate the attacks. So he shot that wolf, and the attacks ended. But Pergolizzi was still shaken. She felt it was a deep moral failure that she couldn’t keep her animals safe. “Psychologically, it was terrible,” she said. That’s why one day Dubois turned up at her doorstep with a psychologist. He saw that she needed to talk.Sometimes Dubois plays the therapist himself. “I’ve seen farmers—tough guys, hardened types—who’ve been holding it together for months, but when I called them, I found them in tears,” Dubois said. “There are farmers—the wolves have broken something in them. We’ve seen it happen. Sometimes the wolf-catcher goes to meet the farmer before a nighttime patrol and never leaves. He stays to talk for hours.”When Lopez interviews candidates who want to be wolf-catchers (their term is five years, but can be renewed), he tries to weed out “would-be cowboys,” he said. He is looking for people who have a sense of duty toward their community. “We don’t only ask them to go and be good shooters. We also ask them to be our eyes and ears in the field … to call the farmers, spend a couple of minutes talking with them, see how they’re doing.”Talking and listening are also at the heart of mediation—one thing that, according to Zimmermann, can actually help solve human-wildlife conflicts that have reached level three. “You really need to start bringing in people who know how to resolve conflicts, do mediation work—that’s a completely different skill set from your classic natural scientist,” she explained. Such mediators need to get to the bottom of things. Is it about cheap food imports from outside the continent? Is it about subsidies going to the wrong places? Or is it about feeling ignored? In Denmark, “The Wolf Dialogue Project,” which involved a group of people from across the political spectrum, took over two years, but ended up reducing polarization and producing several potential solutions to test, such as DNA identification of problem wolves. A similar approach, based on a method called Multicriteria Decision Analysis, showed promise in Italy.But mediation can be scary. You have to let the other side suggest solutions, even if that solution is shooting wolves. “Without even allowing that to be discussed, you are never going to get further anyway,” Zimmermann said. Simply considering shooting as an option could bring people closer—and maybe, just maybe, when people feel they’ve been heard, a compromise might emerge.Pergolizzi accepts that sometimes wolves may need to be shot, even though she doesn’t like the idea. “I’m not anti-wolf, despite everything. If I see one among my cows and I can legally kill it, I will. But I would really like us to talk about this—about the killing, about that violence—because it’s part of nature, too,” she said. She feels that, so far, there is not much real discussion about wolves in France, just two sides shouting at each other. “What exhausted me was feeling judged, unsupported, misunderstood,” she said. Everything is black and white, and so polarized. “It’s insane,” she added.But nature is not black and white—just like the wolf, it’s all about shades of gray. Yes, nature is wild, it’s beautiful, it’s free—but it’s violent, too. Nature is full of complexity, Pergolizzi said, and that complexity is what we need right now in the public discourse on wolves. “There is no easy solution,” she reflected. “We just need to understand each other.” The phone at Digne’s DDT keeps ringing.

Usually, after a night of carnage, the phone rings early in the morning. It sounds first at the Departmental Directorate for Territorial Affairs, or DDT, in an eyesore of a governmental building on the outskirts of Digne, a small town nestled between the lavender fields of Provence and the sharp peaks of the Alps. The farmer on the line is usually distraught, recounting how many sheep were mauled and how the wolves attacked. Was there just one or a whole pack? Did they jump the electric fence, fight off the guard dogs? As the farmer tells his story, a government employee issues an alert, and the administrative procedure starts rolling.Sébastien Dubois takes it from there. As a royal wolf-catcher, Dubois is the latest in a centuries-long line of guardians entrusted by the rulers of France to rid the country of troublesome wolves. They did so in the 800s under the Emperor Charlemagne, and they do so in 2025 under the local prefects. Long gone are the gold-trimmed uniforms, the silver hunting knives, the throngs of hound dogs; now it’s technical outerwear, thermal cameras, high-tech rifles with night vision scopes—and tons of paperwork.Dubois starts his missions with paperwork, too. He does a background check: Does the farmer qualify for wolf-catchers’ protection? Does he have the appropriate authorizations? If all the boxes are checked, Dubois goes to the farm, sometimes hiking for hours to remote Alpine locations. He arrives long before sunset so that he can scout the terrain. He checks the weather, the direction of the wind, and the distance to the nearest woods. He checks the wolves’ tracks and the position of the neighboring houses. Then he waits.Often he stays out all night, always within 1,000 feet of the flock (the rules again). Usually, he hunts alone. He prefers it that way. It allows him to focus on the animal, immerse himself in its mind. “I shoot wolves, yes—that’s the job,” he told me. “But I respect them. We humans, we are fools compared to them. They are always one step ahead.”Most nights, he doesn’t fire a single shot. He strikes only when the wolves are close and about to attack. One time they were preparing to charge an exhausted sheepdog that had been barking up wolves every night for a week. “The dog was drained,” Dubois remembered. “It had lain down. And I saw the wolf; it was mid-attack. I think I shot it just before it pounced.”France is at a dangerous point. There is just too little land and too much bloody history for human-wolf relationships to be easily settled.With his slight frame, in jeans and a polo shirt, Dubois doesn’t look like someone you’d describe with the words “royal” or “wolf-catcher.” Yet over the last five years he has probably spent more than 100 nights hunting wolves, killing many. (He doesn’t like to keep count, he told me.) About 20 of those nights were at a farm owned by Julien Giraud, a stout, middle-aged man with a weathered face and hands cracked from years of fieldwork. When I visited in April, the place was postcard-perfect. Snowy peaks on the horizon framed rolling fields of shortly cropped lavender. The air smelled of dry grass and sun-heated soil. Dozens of sheep grazed behind an electric fence, watched over by a giant tan dog appropriately named Simba, Swahili for lion.The scene may have been peaceful, but Giraud’s voice was tense. Everything changed on June 16, 2019, he told me. More than 100 sheep killed in three nights—a massacre. When his daughter woke up for school, there were dead bodies all around the house. She was only four at the time. “It was horrible,” Giraud said. To protect the sheep, he started sleeping in his car, which he parked near the flock. In five months, he stayed home only a couple of times. He’s not sure why his wife hasn’t left him. “These dates are burned into my memory,” he said, and started to cry.That June, Dubois came over to Giraud’s farm many times. He slept in the car near the flock, too, so that Giraud could go home, get some rest. To the farmer, Dubois is a friend, a helping hand. Yet to many others, especially those on the political left, the wolf-catcher is a symbol of all things wrong: human dominance over nature, speciesism, pointless killings. There are about 1,700 wolf-catchers in France, and some have faced threats and hate mail, Dubois said. He asked me not to use his real name because he felt it would be too risky. He wanted to protect his family.Across Europe, conflicts over wolves have intensified in recent years, and the situation in France is particularly dire. You are either pro-wolf (protect it at all costs), or anti-wolf (get rid of it), with little in between. Fake news proliferates. Wolves have been used as a scapegoat for farmers’ struggles by French politicians, and as a bargaining chip during farmers’ protests. In the United States, tensions flared after wolves were reintroduced into Yellowstone National Park and then Idaho in the mid-1990s, after a decades-long absence. But there are less than half as many wolves in the contiguous United States and far more land. It’s possible to let them roam national parks and other nature preserves, where they’ll have little interaction with humans. “The situation in Europe is much more complicated,” said Dries Kuijper, a wildlife ecologist at the Polish Academy of Sciences. There’s just not enough space for humans and wolves to avoid each other. The land has to be shared.By the end of 2024, the Standing Committee of the Bern Convention approved the European Commission’s proposal to downgrade the wolf’s protection status at the international level, a ruling that went into effect in March 2025. In May, the EU changed another law, allowing member states greater flexibility in managing their wolf populations. And on September 23, the French government relaxed the rules governing when wolves may be shot. Starting in 2026, farmers will be allowed to kill wolves attacking their livestock without prior authorization—an announcement that was met with an outcry from environmental organizations. The changes are unlikely to fix the problem, however. In human-wildlife conflicts, of which European wolves are a classic case, “most efforts have focused on finding rational solutions,” said Alexandra Zimmermann, a conservation biologist at the University of Oxford. However, she pointed out, such conflicts don’t exist on the rational level alone; they go much deeper, into “the sense of not being heard, of identities clashing.” To her, France is at a dangerous point. There is just too little land and too much bloody history here for human-wolf relationships to be easily settled.In a world dominated by the inflammatory black-and-white discourse of social media, conflicts over wolves are a perfect tool to polarize people even further for political gain: to draw them, outraged, to one side or the other.While there are many human-wildlife conflicts across the globe, those involving wolves are among the hardest to solve, Zimmermann said. They have arisen in Wisconsin, in Montana, in India—and now, more frequently and perhaps intensely than anywhere else, in Europe. Humans have a long history with wolves, full of myths, stories, misunderstandings, and violence. The fact that our best friend, the dog, descends directly from the Big Bad Wolf only fuels this love-hate relationship. And in a world dominated by the inflammatory black-and-white discourse of social media, conflicts over wolves are a perfect tool to polarize people even further for political gain: to draw them, outraged, to one side or the other.The gray wolf appeared in Europe about 400,000 years ago, then crossed to North America over the Bering Land Bridge, which linked the continents during ice ages. The species was remarkably successful. Split into over 30 subspecies, from the bulky Yukon wolf to the slender Arabian, it has colonized the Northern Hemisphere. Roughly 40,000 to 15,000 years ago, some wolves became dogs, either because humans selected the docile ones as companions or because certain wolves domesticated themselves for easy access to leftover food.Things were more or less OK on the human-wolf front as long as Homo sapiens stuck to hunting and gathering. Once our ancestors started farming, though, wolves became a problem—especially considering that livestock was often guarded by children. Add rabies into the mix, a disease that makes wolves more aggressive, and it just went downhill. Sheep got killed. Kids got killed. So we told stories of Red Riding Hood, of the Three Little Pigs, teaching children that wolves are to be feared. “A lot of narratives have been built around that, and they are perpetuated to this day,” observed Ugo Arbieu, a social ecologist at the Paris-Saclay University.In ancient Greece, prizes for killing wolves were offered as early as the sixth century BCE. In Rome, hunters called luparii scattered poisoned meatballs to rid the countryside of wolves, but the practice was likely uncommon. At the time, the wolf was often admired in Europe. The Romans believed the founders of their city were nursed by a she-wolf. Then Christianity changed everything with its idea of Jesus as the lamb of God. The wolf became a symbol of evil, a threat to the holy flock—and the hunting began in earnest.The institution of the royal wolf-catcher was created in France by Emperor Charlemagne, a devout Christian. Depending on whom you ask, it happened either in 812 or 813, which makes wolf-catchers one of the oldest branches of the French administration. The position was paid: first in grain from royal coffers, then in bounty collected from villagers for each beast killed, a practice that soon led to abuses and conflicts. The hunts were often grand affairs, with horses, packs of dogs, horns, and nets. Some wolf-catchers had at least a dozen servants, including, at one point, a baker for the hunting dogs’ bread. By the dawn of the French Revolution, the institution cost the country dearly: the equivalent of five years of a mason’s salary to kill a single wolf. And so it was abolished. Napoleon brought wolf-catchers back, but with more regulation. In 1815, for instance, the official uniform was decreed to be blue, with velvet cuffs trimmed in gold and yellow metal buttons embossed with a wolf. The position was strictly voluntary.By the 1930s, effectively no wolves were left in France, however, and very few in the rest of Europe. (In the lower 48 U.S. states, wolves were nearly decimated by the 1960s.) They were driven to extinction by habitat loss, poaching, and, yes, wolf-catchers. Yet bizarrely, the positions survived, as wolf-catchers took to chasing deer off crops instead. The only thing wolf-related was their name—and the buttons on their uniforms.Contrary to rumors circulating online, the government didn’t release the wolves, they returned on their own. Once legal protection was introduced in 1979 under the Bern Convention, and then in 1992 under the Habitats Directive, the wolves that still survived in pockets of Europe, in Italy, in Poland, in the Balkans, returned to their old territories. A single wolf can settle more than 900 miles from its birthplace. “We’ve found wolves that were born in Croatia, traveled through Slovenia and Austria before settling in Italy, in only 98 days,” Arbieu said.There are now more than 20,000 wolves across 23 EU countries. (In the contiguous United States, there are around 8,000.) In France, the official number for 2024 was 1,013, up from zero in 1991. Yet Adrian Treves, an environmental scientist at the University of Wisconsin-Madison, doesn’t like such precise numbers. “To give the public one number is to treat the public like idiots,” he explained. “We never know the exact number of wolves. Never.”Wolf packs are fluid; individual wolves join and leave, walking long distances. Their nighttime habits and their tendency to avoid humans make counting them hard. To get some idea of the numbers, scientists use camera traps, which take photos of passing animals, track wolves via radio collars, and genetically sample wolf poop. In the winter, they use snow-track surveys, following paw prints in the snow. And in the summer, to count the litters of pups, they howl.Jérémy Lopez, the head of the pastoralism unit at Digne’s Departmental Directorate for Territorial Affairs, whose name fittingly derives from Latin for wolf, found himself in the middle of a howling survey in 2019. “It was very strange,” he told me. There were several teams trained to imitate wolves, spread out across Alpine slopes. After the sun set, the humans started howling, each person going on for about 30 seconds. Lopez joined, too. “It looked like a bunch of people hanging about trying to sound like wolves, with traffic cones for megaphones,” he laughed. Then, the wolves responded: first one pack, then another. “We ended up in the middle of two packs answering each other, and that went on for like 45 minutes,” Lopez said. It was at once silly, awesome, and humbling.While howling surveys may seem bizarre, they are commonly used to count wolf packs and their litters. Although the howls of adult wolves blend together into one voice, the pups can’t howl, and yelp instead. Such yelps can be counted, giving researchers an idea of how fast the animals are breeding.And they do breed fast, at least in Europe. The numbers of wolves across the continent, as imprecise as they may be, are up more than 50 percent over a decade. In Germany, between 2015 and 2023, the number of wolf packs increased over four times. For some, that breeds fear. What also breeds fear are media reports on wolf attacks, many of them inaccurate. A 2021 study by Arbieu and his colleagues found that articles in which the victim was allegedly bitten by a wolf tend to be more misleading—the headlines exaggerated and sensational—than those describing dog attacks.Elia Pergolizzi, a cattle farmer with large blue eyes and a large crease between them, doesn’t hide her fear of wolves. Since the attacks on her farm, which is north of Digne, started several years ago, she dreams of wolves, of hunting. “It’s fascination mixed with terror,” she said. As we talked over coffee at her wooden dining table, Pergolizzi kept getting up and walking to the wall of windows overlooking a gently sloping Alpine meadow beyond her house, dotted with rust-colored cows. Her daughter was playing out there on her own, and Pergolizzi was worried. With wolves, you just never know.Over the past decades, no humans were killed by wolves in Europe. That’s not to say it couldn’t happen. Europeans did fall victim to wolves’ jaws in the past, as evidenced by data from parish death registries. There were plenty of legends, too, such as that of La bête de Touraine, a monster of a wolf that supposedly terrorized France sometime in the late seventeenth century. It was said to have devoured more than 250 people.Folktales aside, such a fate likely wasn’t common. French historian Jean-Marc Moriceau calculated, based on public and private archive records, that wolves in France claimed only about 18 victims per year over five centuries, starting in 1575. What’s more, research suggests that rabies, which was widespread in seventeenth-century France, might have been responsible for many of the attacks—and tales of monster wolves. Yet France has been rabies-free since 2001, and the disease is now very rare across the rest of Europe, too. No rabies, no monsters.While modern Europeans are unlikely to fall victim to wolves, that’s not the case for their livestock. In 2023, wolves killed more than 10,000 farm animals in France, about a fifth of the total number of those killed across the union. That’s between two and three sheep, cows, or goats per wolf—and much more than claimed by their American cousins. (In Montana, which has an estimated wolf population of 1,096, only 31 cattle and sheep were killed in 2023.)Yet, taken alone, these numbers still don’t explain the ferocity of the European war on the wolf. For one, in absolute terms, 56,000 mauled farm animals is not that much—there are 271 million livestock in the EU. And two, farmers do get reimbursed for their losses. “Per sheep, it’s now somewhere around 260 euros,” Lopez said, “which is in general above market value.” The government also pays for indirect damages: the loss of genetic material, the stress to the rest of the flock that can result in miscarriages or lower output of milk. In 2024, wolves cost the French government about 43,000 euros per wolf in compensation to farmers and grants for livestock protection measures, such as electric fences.Julien Giraud appreciates the compensation he gets for the sheep he loses to wolves. Yet he believes that all this talk about money misses the point. “People say, ‘You’re compensated—what are you whining about?’ But until you’ve experienced it, people can’t understand,” he said. For him, it’s about the trauma of seeing your sheep gutted and bleeding all over your fields. It’s about having to finish them off to end their suffering. It’s about feeling alone with that trauma and about no one listening, really listening. It’s about governments making decisions up there in Paris and Brussels and pushing them onto farmers like him. “It’s not about the money,” he told me, shaking his head.Between 2022 and 2024, farmers’ frustration erupted into protests across Europe. In Switzerland, to decry the return of the wolf, farmers dumped dead sheep in front of a government building. In the Netherlands, they performed mock wolf hangings. In western France, pro-wolf protesters faced anti-wolf protesters. The protests weren’t just about the wolves, of course. In each country, the reasons behind the unrest were different, but there were common threads: discontent with low food prices paired with high price tags for fertilizer and feed, concerns about cheap imports of farm products from outside the EU, resentment over tightening environmental rules, and, above all, frustration with low incomes. “Farmers feel that they are stuck in liberalized markets on which they have to produce for the lowest price possible,” explained Jeroen Candel, a political scientist at Wageningen University in the Netherlands. “They have relatively little bargaining power vis-à-vis retailers and food processors.”Two triggers for the protests were the new Common Agricultural Policy, formally passed in January 2023, and the European Green Deal. In order to make the continent’s agriculture more planet-friendly, these policies required farmers to set aside more land to support biodiversity, rotate crops, and reduce pesticide use, all while adding red tape. To many farmers, it sounded like making a tough life even tougher.As Europe was due for elections to the European Parliament in June 2024, favorable policies were exchanged for electoral support, Candel said. Environmental legislation turned into “a new political cleavage both within the member states and in Brussels, where especially the conservatives and right-wing groups portray the Green Deal as a leftish, elitist project,” he said. A study of German online media revealed that the far-right populist party Alternative for Germany, or AfD, made the wolf its campaign issue. In readers’ comments, being anti-wolf was strongly linked to anti-EU sentiments and to a belief in conspiracies by “elites,” such as scientists falsifying data to encourage nature protection. In 2019, Julia Klöckner, then a minister of agriculture from the German Christian Democratic Union party, called the wolf “a campaign booster for the AfD.” The predator became a symbol of an urban hobby that threatens farmers’ livelihoods, a symbol of left versus right, of nature versus human. “Wolves are very high in symbolism,” said Fabien Quétier, the head of landscapes at Rewilding Europe, a nonprofit.The EU changed the law to make killing wolves easier apparently to placate farmers and preserve “rural livelihoods.” Some critics said that the move was not really about the farmers, but the result of a personal vendetta of Ursula von der Leyen, the European Commission president, whose beloved pony, Dolly, was killed in 2022 by a wolf in Beinhorn, Germany. Later, von der Leyen was quoted as saying that European wolves had “become a real danger for livestock and potentially also for humans.” Many researchers and environmental NGOs were appalled by the weakened protections, calling them a “major blow to science.” Wolves are not the enemy, they said—they bring important benefits to both nature and humanity. Take road accidents, for example. A study in Wisconsin showed that wolves make roads safer: Their presence in the state reduced collisions with deer by almost a quarter. It’s not simply that wolves eat prey so that there are fewer deer caught in literal headlights. With large predators around, the prey “start behaving differently,” Kuijper said. Deer, moose, and boars have to be on a constant lookout, which also includes paying more attention while crossing roads.Fear also forces prey to avoid spots where they may be exposed to danger, with benefits to biodiversity. “If you don’t have any predators, deer can just walk wherever they like, and they go to the places with the best food. Once you add a predator to the system, they don’t do that anymore,” Kuijper said. As a result, some parts of forests are intensely browsed by deer, while others are left to flourish. In Wisconsin, one study showed, areas inhabited by wolves are particularly rich in shrubs and wildflowers, from honeysuckles and hazelnuts to bog orchids and bluebead lilies. The differences are obvious to the naked eye: Compared to forests teeming with wolves, areas without them look as if someone had mowed down the vegetation.Yet the problem with downgrading protection of wolves, critics say, is not simply that these predators benefit ecosystems; it’s also that killing them often does little to actually protect farms (even if you wiped them all out, other predators would likely replace them). Slovakia is a case in point. A study in this central European country found no relationship between the number of wolves hunted down and the number of sheep lost by farmers. In France, the results of similar studies were mixed. On three sites, killing wolves brought the desired effects (sheep spared); on five sites, there were no effects; and on one site, the hunting actually backfired, with more livestock devoured by wolves.That is less impossible than it may seem. Wolves hunt best when they do so in large, intact packs. Kill a few individuals, and the packs break up, making the remaining wolves less efficient. “Like in a sports team, if you remove one or two members, the team will not function as it used to,” Treves said. Livestock make for easier prey than wild animals do, and so that’s what the wolves from broken packs go for.Scientists and NGOs argue that instead of simply killing wolves, we should focus on nonlethal control options, such as electric fencing, guard dogs, and shepherds. “If you don’t protect livestock, you can forget about preventing conflicts with wolves,” Kuijper said. One effective technique is fladry—a rope with flags that flutter in the wind, scaring off wolves. Electric fencing works, too, but it cuts through landscapes, preventing wildlife from moving freely. To complicate matters, wolves are fast learners. Fences can be jumped over or dug under. In one study, fladry worked for two months, and then it didn’t: The wolves figured out thxat it was just flapping cloth.Jérôme Bach, a livestock farmer north of Digne, believes that if you want to protect livestock, guard dogs are a great option. “You have to have dogs. If you don’t, the wolves will realize quickly it’s an all-you-can-eat buffet,” he said. A decade ago, Bach quit the circus where he worked as a juggler, took his beloved sidekick, a border collie, and started herding sheep. He liked the idea of being alone in nature. Now he is still in nature, but less alone. He lives with his wife and four kids on a farm in a community where everyone knows each other. He breeds guard dogs for local farmers and assists with training.On the day I visited, Bach’s barn smelled of fresh hay. Among a group of brown goats, three cream Anatolian shepherd puppies played with an empty bucket, their thick legs uncertain on a carpet of straw. They were born here, right within the herd. To be a good guardian, Bach tells me, a dog has to identify with the herd—not as a sheep or as a goat, but as their family. “Before his eyes even open, he hears the sounds of sheep, the sounds of goats, and he smells them,” Bach said. The dog gets attached to livestock, and his protective instincts, hardwired within the breed, kick in. If one day a wolf approaches the herd, the dog will feel the sheep’s distress—and he will do anything to protect them. One time, Bach heard sheep bells in the middle of the night, going off in every direction. He jumped out of bed and ran outside in his underwear. “The dogs were going wild,” he said. They barked, and they won. The wolves gave up.Yet guard dogs are not a perfect solution. The wolves often outsmart them, tricking the dogs to follow one predator while the rest of the pack attacks in a different spot. In direct combat, the dogs lose. They bother neighbors. They attack hikers. What’s more, they cost a lot of money and time. “It adds a lot of work. It’s really restrictive for us. And we already have a lot to do,” Bach said, shaking his head. Bach, like Giraud, like Pergolizzi, simply feels tired. Tired and ignored. “I’m worn out, both physically and mentally,” Pergolizzi said.For Zimmermann, these feelings—the exhaustion, the frustration, the sadness—mean that the whole discussion of the pluses and minuses of different methods of controlling wolves misses the point. It’s not about the efficacy of fladry versus fencing, or whether shooting a certain number of wolves would limit attacks. Using ideas from peace-building, Zimmermann and her colleagues identified three levels of human-wildlife conflict. The first, and the mildest, is when things are just beginning to stir, when people are still willing to talk, and practical measures such as fencing can fix the problem. That’s where human-elephant conflicts in northeast India stand. At level two, the waters become muddier: Some hurtful things were said in the past, other things were not done, and resentment is growing. At level three, the conflict becomes about identities, not animals. You know when you’ve hit level three when people start using polarized language, when they talk about threats to their way of life, about not being heard. “There is deliberate blaming of each other, hostility, completely different realities,” Zimmermann said. That’s wolves in Europe. “Wolves do seem to be an extreme case, where they’re more polarizing than any other wildlife that we’ve studied,” Treves observed.Trying to solve a level-three conflict as if it were a level-one may be self-defeating. Rational fixes come naturally to conservation scientists, Zimmermann said, but you may end up stomping on that sense of not being heard. Say an NGO turns up and tells farmers that it’s found the perfect new solar fence that is going to solve all their problems—“They will not be impressed. It’s clumsy,” she said. “The farmers might feel that they have not been heard on this, that they are always being told what to do by the scientists.” This may also explain why research shows that compensation for wolf-inflicted damages often does little to increase acceptance of these predators, and sometimes even adds fuel to the fire. “In decision-making circles, they look down on us,” Pergolizzi said. “Because for us, this is our life. It’s not just a financial matter. It’s not just, ‘Oh, I lost an animal, and it cost me this much.’ I don’t care about that—they paid me for it. It’s not about the money. It’s about physical and psychological integrity. And it goes deep. It goes very, very deep.”Pergolizzi is not your stereotypical right-wing farmer. She is anti-pesticide and worries about climate. Her house is dotted with organic products. She produces meat, but tells people to eat less of it: In her view, meat should be nature’s gift, celebrated on special occasions. In the wolf debate, she feels she is caught in between the conservative rural right and the green urban left.She didn’t believe in shooting wolves—until a few years ago, that is, when she saw one of her pregnant cows disemboweled by wolves. The cow was still alive, licking her dead calf. “I had a lot of nightmares after that,” she said. Last year, the attacks started again, even though she changed her farming practices and built a shed where the cows could calve indoors. And so she called DDT in Dinge, and a wolf-catcher came. He stayed one night, then another. He observed. It was always the same pack, and the same wolf that would initiate the attacks. So he shot that wolf, and the attacks ended. But Pergolizzi was still shaken. She felt it was a deep moral failure that she couldn’t keep her animals safe. “Psychologically, it was terrible,” she said. That’s why one day Dubois turned up at her doorstep with a psychologist. He saw that she needed to talk.Sometimes Dubois plays the therapist himself. “I’ve seen farmers—tough guys, hardened types—who’ve been holding it together for months, but when I called them, I found them in tears,” Dubois said. “There are farmers—the wolves have broken something in them. We’ve seen it happen. Sometimes the wolf-catcher goes to meet the farmer before a nighttime patrol and never leaves. He stays to talk for hours.”When Lopez interviews candidates who want to be wolf-catchers (their term is five years, but can be renewed), he tries to weed out “would-be cowboys,” he said. He is looking for people who have a sense of duty toward their community. “We don’t only ask them to go and be good shooters. We also ask them to be our eyes and ears in the field … to call the farmers, spend a couple of minutes talking with them, see how they’re doing.”Talking and listening are also at the heart of mediation—one thing that, according to Zimmermann, can actually help solve human-wildlife conflicts that have reached level three. “You really need to start bringing in people who know how to resolve conflicts, do mediation work—that’s a completely different skill set from your classic natural scientist,” she explained. Such mediators need to get to the bottom of things. Is it about cheap food imports from outside the continent? Is it about subsidies going to the wrong places? Or is it about feeling ignored? In Denmark, “The Wolf Dialogue Project,” which involved a group of people from across the political spectrum, took over two years, but ended up reducing polarization and producing several potential solutions to test, such as DNA identification of problem wolves. A similar approach, based on a method called Multicriteria Decision Analysis, showed promise in Italy.But mediation can be scary. You have to let the other side suggest solutions, even if that solution is shooting wolves. “Without even allowing that to be discussed, you are never going to get further anyway,” Zimmermann said. Simply considering shooting as an option could bring people closer—and maybe, just maybe, when people feel they’ve been heard, a compromise might emerge.Pergolizzi accepts that sometimes wolves may need to be shot, even though she doesn’t like the idea. “I’m not anti-wolf, despite everything. If I see one among my cows and I can legally kill it, I will. But I would really like us to talk about this—about the killing, about that violence—because it’s part of nature, too,” she said. She feels that, so far, there is not much real discussion about wolves in France, just two sides shouting at each other. “What exhausted me was feeling judged, unsupported, misunderstood,” she said. Everything is black and white, and so polarized. “It’s insane,” she added.But nature is not black and white—just like the wolf, it’s all about shades of gray. Yes, nature is wild, it’s beautiful, it’s free—but it’s violent, too. Nature is full of complexity, Pergolizzi said, and that complexity is what we need right now in the public discourse on wolves. “There is no easy solution,” she reflected. “We just need to understand each other.” The phone at Digne’s DDT keeps ringing.

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