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The electrified highway that could change the future of trucking (and this polluted San Diego neighborhood)

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Tuesday, August 13, 2024

This story is the second in a series by Reckon and Next City examining how Black and Brown communities across the U.S. are working to hold corporations accountable for environmental injustices. Read the first story, on a new rail line planned in Africatown, the Alabama neighborhood founded by formerly enslaved people.For decades, San Diego’s port communities like Barrio Logan and National City have been plagued with unhealthy air quality. Residents of communities bordering the 34 miles of coastline encompassed by the Port of San Diego face a barrage of toxic pollutants and other hazardous conditions from industrial shipyards, intersecting neighborhood freeways, and even the U.S. Navy. They believe these hazardous conditions would never be tolerated in San Diego’s more affluent areas.The fight for clean air has been a long, uphill battle for these working-class, historically Mexican-American and immigrant communities. But after years of advocacy by residents and activists, the Port of San Diego has begun to take steps to offset the long history of environmental racism and injustice.In May, the Board of Port Commissioners for the San Diego Unified Port District voted unanimously to double the board’s annual contribution to the Maritime Industrial Impact Fund (MIIF) and help curb emissions by expanding the fund’s scope to include several electrification projects.“For decades, communities living next to the port marine cargo terminals have had the burden of pollution from the operations at these port terminals,” says Kyle Heiskala, Policy Co-Director for the Environmental Health Coalition (EHC), an environmental justice nonprofit that pressed the board to up its MIIF contribution. “They have not seen a ton of benefits for the local residents living near the port, and instead get a lot of the negative impacts in terms of air pollution.”Disproportionate environmental impactToday, Barrio Logan is one of the most polluted areas of San Diego County and ranks among the top 5% of California’s most polluted areas. The community is more than 85% Hispanic, and more than a quarter of residents live below the poverty line. Both Barrio Logan and neighboring National City rank in the 90th percentile for some of the highest concentrations of diesel particulate matter in all of California. The byproduct of exhaust from trucks, buses, trains, ships, and other equipment, the pollutant has been deemed carcinogenic to humans by the International Agency for Research on Cancer. According to the EPA, due to their proximity to the port, rail yards, and freeways, residents have an 85% to 95% higher risk of developing cancer than the rest of the U.S.Historically, outcry over the disproportionate impact of environmental hazards created by the Port have been ignored. Some have even blamed residents for living in communities that border the Port and its industries, but Heiskala notes that San Diego’s ‘Portside’ communities predate the Port and its industries.“People need to remember that the neighborhoods and communities were here first. The Port was established in 1962 – these neighborhoods are over a hundred years old,” he said. “All of the industries that we’ve seen grow over the past five decades have been introduced into these communities of color as a result of race-based land use decisions that took neighborhoods and cited them for industry.”In 2023, Barrio Logan moved forward with a new community plan, marking the first update to the neighborhood’s plan in over 40 years and a victory in residents’ long battle to add buffers between the port and neighboring communities. The most consequential update amended the city’s zoning laws banning the creation of mixed commercial/residential zones directly adjacent to residential areas.“We don’t see shipyards in La Jolla for very historically documented reasons,” Heiskala adds, pointing to a mostly-white neighborhood just 15 minutes north of Barrio Logan.Steps forwardIn 2010, the board established the MIIF to address some of these historic inequities and aid communities bordering the Port. The Port will now contribute 4% percent of its gross maritime industrial revenue – an estimated $1.55 million in fiscal year 2025. Previously, a 2% cap had been approved in June 2023.The Port’s increase to the MIIF would contribute to various methods and strategies to offset the impacts of industrial pollution. Over $500,000 has already been spent on equipment like air filters and air monitors for homes and elementary schools adjacent to the port, to help filter indoor air and monitor quality.The MIIF has funded a variety of community programs, notably the FRANC Program, a free electric shuttle system that connects multiple destinations throughout National City.Heiskala says that the board of port commissioners’ commitment is evident in the progress made towards the Maritime Clean Air Strategy goals and the Port has seen immense progress in converting cargo handling equipment to electric. The Port of San Diego now boasts the nation’s first cohort of all-electric cranes and all-electric tug boat, with a goal of zero-emission trucks and cargo handling equipment by 2030.Too little, too late?Not all residents have been impressed with the Port’s progress in meeting its emissions goals. Lydia Young, a community organizer who lives in Logan Heights, believes the Port’s actions are only a fraction of what’s needed to address a long cycle of neglect in San Diego’s portside communities.“The MIIF is a good first step that’s decades too late,” Young says, adding that the $1.55 million contribution is a mere fraction of the Port’s revenue and local impact. The Port of San Diego’s website says it had a “$9.2 billion overall economic impact in San Diego County” in 2019.“At this rate, the MIIF would support the fiscal average of one two-story house a year in San Diego,” Young says. “For an industry that makes billions from our land and labor each year at the risk of our health, this is nowhere near enough.”Dr. Vi Nguyen, a pediatrician at Kaiser Permanente San Diego and co-founder of San Diego Pediatricians For Clean Air, also believes more must be done to address the needs of children and families in portside communities.“There’s a lot more money being invested in mitigation, but the health effects on these communities span generations, and a couple of million dollars isn’t going to fix everything,” Nguyen says.Most of Dr. Nguyen’s patients and their families live in Barrio Logan, Logan Heights, and National City. And although the cost to reduce emissions at the Port is steep, Dr. Nguyen says it pales in comparison to the long-term costs of failing to do so.“Just in terms of asthma, the downstream cost to us as a healthcare system is astronomical,” Dr. Nguyen says. “Exposure to PM 2.5 during the first and second trimester of pregnancy and in the first years of life skyrockets the chance of developmental delay, lower IQ, anxiety, depression, and psychotic experiences. Having a child with autism or developmental delay is a lifetime of cost to the individual and the families and communities.”Moving toward electrificationIn addition to MIIF allocations, San Diego’s portside communities have received funding for more emissions-reduction projects.Last year, National City received an $8.5 million federal grant to create a plug-in electrification project for idling ships to tap into the city’s power grid to charge from the shore. Advocates foresee that the biggest challenge is likely the transition of the local trucking fleet from diesel to electric trucks. In March, the Port also approved a developer to build and operate a zero-emission truck stop in National City, capable of charging up to 40% of the port’s trucking fleet.But the U.S. trucking industry’s decentralized structure has complicated efforts to convert San Diego’s local trucking fleet. “When the cranes stop operating at the end of the day, it’s off and sits there on the terminal. But these trucks are driving all over the community,” Heiskala explains. Currently, federal rules make it difficult to transition from diesel to electric, and regulations dictating the number of hours a truck driver is allowed to drive before they’re required to break don’t take into account the time it takes to charge electric trucks.“The current board of Port Commissioners as a majority has recognized their responsibility to undoing those historical harms,” Hesikala said. “We have to do it because of climate change, but we also owe it to the generations of people who have been suffering and literally dying from the pollution.”Like the history of San Diego’s portside communities themselves, the path to a zero-emissions port has been complicated. The most recent victory in funding and the commitment to further electrification, however, signal a potential turning point.Though the fight against industrial pollution in San Diego’s portside communities is far from over, for the first time in decades, there is a sense of progress and hope for cleaner air and healthier communities.Roberto Camacho is a Chicano freelance multimedia journalist from San Diego, California. His reporting typically focuses on criminal justice reform, immigration, Chicano/Latino issues, hip-hop culture, and their intersections to social justice. Follow him on Twitter/IG/Threads: @rob_camacho_sd

After a long battle, San Diego’s Port has doubled its commitment to offset the impacts of industrial pollution in neighboring communities.

This story is the second in a series by Reckon and Next City examining how Black and Brown communities across the U.S. are working to hold corporations accountable for environmental injustices. Read the first story, on a new rail line planned in Africatown, the Alabama neighborhood founded by formerly enslaved people.

For decades, San Diego’s port communities like Barrio Logan and National City have been plagued with unhealthy air quality. Residents of communities bordering the 34 miles of coastline encompassed by the Port of San Diego face a barrage of toxic pollutants and other hazardous conditions from industrial shipyards, intersecting neighborhood freeways, and even the U.S. Navy. They believe these hazardous conditions would never be tolerated in San Diego’s more affluent areas.

The fight for clean air has been a long, uphill battle for these working-class, historically Mexican-American and immigrant communities. But after years of advocacy by residents and activists, the Port of San Diego has begun to take steps to offset the long history of environmental racism and injustice.

In May, the Board of Port Commissioners for the San Diego Unified Port District voted unanimously to double the board’s annual contribution to the Maritime Industrial Impact Fund (MIIF) and help curb emissions by expanding the fund’s scope to include several electrification projects.

“For decades, communities living next to the port marine cargo terminals have had the burden of pollution from the operations at these port terminals,” says Kyle Heiskala, Policy Co-Director for the Environmental Health Coalition (EHC), an environmental justice nonprofit that pressed the board to up its MIIF contribution. “They have not seen a ton of benefits for the local residents living near the port, and instead get a lot of the negative impacts in terms of air pollution.”

Disproportionate environmental impact

Today, Barrio Logan is one of the most polluted areas of San Diego County and ranks among the top 5% of California’s most polluted areas. The community is more than 85% Hispanic, and more than a quarter of residents live below the poverty line. Both Barrio Logan and neighboring National City rank in the 90th percentile for some of the highest concentrations of diesel particulate matter in all of California. The byproduct of exhaust from trucks, buses, trains, ships, and other equipment, the pollutant has been deemed carcinogenic to humans by the International Agency for Research on Cancer. According to the EPA, due to their proximity to the port, rail yards, and freeways, residents have an 85% to 95% higher risk of developing cancer than the rest of the U.S.

Historically, outcry over the disproportionate impact of environmental hazards created by the Port have been ignored. Some have even blamed residents for living in communities that border the Port and its industries, but Heiskala notes that San Diego’s ‘Portside’ communities predate the Port and its industries.

“People need to remember that the neighborhoods and communities were here first. The Port was established in 1962 – these neighborhoods are over a hundred years old,” he said. “All of the industries that we’ve seen grow over the past five decades have been introduced into these communities of color as a result of race-based land use decisions that took neighborhoods and cited them for industry.”

In 2023, Barrio Logan moved forward with a new community plan, marking the first update to the neighborhood’s plan in over 40 years and a victory in residents’ long battle to add buffers between the port and neighboring communities. The most consequential update amended the city’s zoning laws banning the creation of mixed commercial/residential zones directly adjacent to residential areas.

“We don’t see shipyards in La Jolla for very historically documented reasons,” Heiskala adds, pointing to a mostly-white neighborhood just 15 minutes north of Barrio Logan.

Steps forward

In 2010, the board established the MIIF to address some of these historic inequities and aid communities bordering the Port. The Port will now contribute 4% percent of its gross maritime industrial revenue – an estimated $1.55 million in fiscal year 2025. Previously, a 2% cap had been approved in June 2023.

The Port’s increase to the MIIF would contribute to various methods and strategies to offset the impacts of industrial pollution. Over $500,000 has already been spent on equipment like air filters and air monitors for homes and elementary schools adjacent to the port, to help filter indoor air and monitor quality.

The MIIF has funded a variety of community programs, notably the FRANC Program, a free electric shuttle system that connects multiple destinations throughout National City.

Heiskala says that the board of port commissioners’ commitment is evident in the progress made towards the Maritime Clean Air Strategy goals and the Port has seen immense progress in converting cargo handling equipment to electric. The Port of San Diego now boasts the nation’s first cohort of all-electric cranes and all-electric tug boat, with a goal of zero-emission trucks and cargo handling equipment by 2030.

Too little, too late?

Not all residents have been impressed with the Port’s progress in meeting its emissions goals. Lydia Young, a community organizer who lives in Logan Heights, believes the Port’s actions are only a fraction of what’s needed to address a long cycle of neglect in San Diego’s portside communities.

“The MIIF is a good first step that’s decades too late,” Young says, adding that the $1.55 million contribution is a mere fraction of the Port’s revenue and local impact. The Port of San Diego’s website says it had a “$9.2 billion overall economic impact in San Diego County” in 2019.

“At this rate, the MIIF would support the fiscal average of one two-story house a year in San Diego,” Young says. “For an industry that makes billions from our land and labor each year at the risk of our health, this is nowhere near enough.”

Dr. Vi Nguyen, a pediatrician at Kaiser Permanente San Diego and co-founder of San Diego Pediatricians For Clean Air, also believes more must be done to address the needs of children and families in portside communities.

“There’s a lot more money being invested in mitigation, but the health effects on these communities span generations, and a couple of million dollars isn’t going to fix everything,” Nguyen says.

Most of Dr. Nguyen’s patients and their families live in Barrio Logan, Logan Heights, and National City. And although the cost to reduce emissions at the Port is steep, Dr. Nguyen says it pales in comparison to the long-term costs of failing to do so.

“Just in terms of asthma, the downstream cost to us as a healthcare system is astronomical,” Dr. Nguyen says. “Exposure to PM 2.5 during the first and second trimester of pregnancy and in the first years of life skyrockets the chance of developmental delay, lower IQ, anxiety, depression, and psychotic experiences. Having a child with autism or developmental delay is a lifetime of cost to the individual and the families and communities.”

Moving toward electrification

In addition to MIIF allocations, San Diego’s portside communities have received funding for more emissions-reduction projects.

Last year, National City received an $8.5 million federal grant to create a plug-in electrification project for idling ships to tap into the city’s power grid to charge from the shore. Advocates foresee that the biggest challenge is likely the transition of the local trucking fleet from diesel to electric trucks. In March, the Port also approved a developer to build and operate a zero-emission truck stop in National City, capable of charging up to 40% of the port’s trucking fleet.

But the U.S. trucking industry’s decentralized structure has complicated efforts to convert San Diego’s local trucking fleet. “When the cranes stop operating at the end of the day, it’s off and sits there on the terminal. But these trucks are driving all over the community,” Heiskala explains. Currently, federal rules make it difficult to transition from diesel to electric, and regulations dictating the number of hours a truck driver is allowed to drive before they’re required to break don’t take into account the time it takes to charge electric trucks.

“The current board of Port Commissioners as a majority has recognized their responsibility to undoing those historical harms,” Hesikala said. “We have to do it because of climate change, but we also owe it to the generations of people who have been suffering and literally dying from the pollution.”

Like the history of San Diego’s portside communities themselves, the path to a zero-emissions port has been complicated. The most recent victory in funding and the commitment to further electrification, however, signal a potential turning point.

Though the fight against industrial pollution in San Diego’s portside communities is far from over, for the first time in decades, there is a sense of progress and hope for cleaner air and healthier communities.

Roberto Camacho is a Chicano freelance multimedia journalist from San Diego, California. His reporting typically focuses on criminal justice reform, immigration, Chicano/Latino issues, hip-hop culture, and their intersections to social justice. Follow him on Twitter/IG/Threads: @rob_camacho_sd

Read the full story here.
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England’s water industry issued £10.5bn in ‘green bonds’ despite pollution record

River Action says use of issuance tied to environmental benefits is ‘corporate greenwash on steroids’Water companies have issued a fifth of the UK’s “green bonds” since 2017, despite a consistently poor record of sewage pollution during that time, research has shown.Privately owned water companies in England have together issued £10.5bn in bonds tied to projects that offer “environmental benefits”, according to analysis of financial market data by Unearthed, which is part of Greenpeace UK. Continue reading...

Water companies have issued a fifth of the UK’s “green bonds” since 2017, despite a consistently poor record of sewage pollution during that time, research has shown.Privately owned water companies in England have together issued £10.5bn in bonds tied to projects that offer “environmental benefits”, according to analysis of financial market data by Unearthed, which is part of Greenpeace UK.Anglian Water has been the biggest issuer in the water industry, at £3.5bn, with struggling Thames Water second at £3.1bn. The two companies were the third- and sixth-largest issuers of corporate green bonds overall since 2017.Issuers of green bonds are expected to use the proceeds for defined purposes such as renewable energy, greenhouse gas control and clean transportation such as electric vehicles. Sustainable water and wastewater management is also included. This means many water companies’ standard operations qualify. In return, companies tend to be able to borrow more cheaply, because they attract investors hoping to benefit the environment while also profiting.Yet the privatised water industry in England and Wales has faced persistent criticism over its environmental record in recent decades, after years of alleged underinvestment and payment of large dividends to shareholders.The first green bond issued by a UK water company was in 2017, when Anglian, which supplies much of the east of England, raised £250m. However, the UK government’s Environment Agency last month said environmental progress across the sector had declined in the last year. Critics of the water industry said the poor performance raised questions over possible “greenwashing” in relation to the bonds.James Wallace, the chief executive of River Action, a clean water campaign group, said: “This is corporate greenwash on steroids. UK water companies are raising billions through green bonds while failing to deliver the environmental improvements these funds are supposed to support.“Their crumbling infrastructure continues to kill rivers and put communities at risk while investors are rewarded. True green finance should deliver real benefits for the environment and public health, not mask ongoing pollution.”Water companies accounted for 19% of all corporate issuance between 2017 and 2025. If issuance by the Thames Tideway “super sewer” developer is taken into account, that proportion rises to 22%.Thames Water’s effective owners are pushing for the government to grant it leniency on environmental standards for as long as 15 years as part of a rescue plan. Unearthed also revealed that Thames has failed to publish impact reports detailing its bonds’ environmental benefit for two years. Although not a legal requirement, the failure to publish the reports contravenes the industry standard.The company said it was still committed to publishing the impact reports for its green bonds. A spokesperson said: “The impact report for 2022-23 and 2023-24, which will detail the allocation of the £1.65bn raised through our January 2023 green bond issuance, has not yet been published. We take our reporting responsibilities seriously, and on this occasion we have fallen short of meeting expectations.”skip past newsletter promotionSign up to Business TodayGet set for the working day – we'll point you to all the business news and analysis you need every morningPrivacy 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 promotionAn Anglian spokesperson said growing the economy while reducing pollution required “significant and sustained investment in infrastructure”, adding that the funds raised “helped to deliver significant environmental improvements”.“We know there is more still to do, particularly on issues like pollution, but environmental performance is broader than just that one measure,” the spokesperson said, pointing to carbon emission reductions.They said it was vital that the government create the conditions for an “investable sector” through regulatory reform.Water UK, a lobby group for the industry, declined to comment.

Where others saw litter, he saw a bird: Galveston artist crafts reddish egret from washed-up debris

The artwork, which will be displayed at Moody Gardens and other locations on the island, was created to increase awareness about plastic pollution in the ocean.

Julianna Washburn/HPMGalveston artist Evan McClimans shows the eye of his sculpture made out of marine debris on Nov. 25, 2025.When artist Evan McClimans saw broken garbage bins, a discarded kayak and blue bottle caps that littered Galveston’s beaches, he didn't see it as trash. He saw a vision. McClimans transformed the waste bins into what now looks like bird feathers, the kayak came to resemble sand and the bottle caps were made into what looks like ocean water. Sign up for the Hello, Houston! daily newsletter to get local reports like this delivered directly to your inbox. After four months of creating, McClimans finished his work of art. He'd pieced together thousands of pieces of marine debris from Galveston to create a 7-foot sculpture of a reddish egret, the official bird of Galveston and a threatened species nicknamed "Gerde of the Gulf." "It’s been a lot of blood, sweat and tears on this thing and I’m just so grateful that I got to do it," McClimans said. The project was part of a partnership between the Galveston Park Board and Washed Ashore, an Oregon-based organization that works to encourage recycling and educate the public about plastic pollution in the ocean. Sculptures are made out of washed-up debris and represent marine life affected by plastic pollution. "When you’re looking at these different artworks, you’re understanding that these are things ending up in the ocean that we use every single day," said Elizabeth Walla, environmental programs manager at the Galveston Park Board. Walla said the Galveston Park Board, which is responsible for maintaining all 32 miles of beach front on the island south of Houston, has a crew of 36 members who clean the beaches by hand every day, picking up trash and emptying trash barrels. "It is hard to imagine, but we are picking up at least 2 million pounds of trash from our beach front every year," Walla said. Walla said marine debris in Galveston isn't just from people leaving trash on the beach, however, as a study by the National Oceanic and Atmospheric Administration (NOAA) found that marine debris accumulation rates were 10 times higher in Texas than the other states along the Gulf, because of where Texas sits in relation to wind directions and currents. "When that was released, it made sense to me because a lot of the trash that we see, especially the bigger stuff, has barnacles on it. It has algae on it. You can tell it’s been in the water for quite a while," Walla said. To help create “Gerte,” Walla said in addition to the crew that typically cleans the beaches, volunteers from around the community came together to help pick up marine debris. Items such as lighters, beach toys and sand buckets now help make up the sculpture. Julianna Washburn, HPM“Gerte of the Gulf,” a sculpture made out of marine debris, sits inside artist Evan McClimans’ shop on Nov. 25, 2025.Julianna Washburn/HPMGalveston artist Evan McClimans shows a children’s toy that sits on his sculpture made out of marine debris on Nov. 25, 2025. "My favorite is the Texas volleyball," McClimans said about one of the items on the sculpture. "I have a whole bin full of beach balls that they found out in random places, but that one had Texas on it and since this [sculpture] is staying in Galveston, I thought it’d be appropriate to put that one on there." While each piece of marine debris turned into its own artform, McClimans, who once focused his energy entirely on welding, said creating Gerte changed him, too. "I’ve definitely taken a bigger interest in making sure that I do my part and preach to others to do theirs," McClimans said. "When I go to the beach, I make sure [to] pick up 10 pieces when you’re there, pick up 10 pieces when you leave," McClimans said. At a Galveston City Council meeting in November, "Gerde of the Gulf" was given the 2025 Galveston Planning & Design Award in the environmental category. Gerte will be displayed at Moody Gardens starting Monday, then the sculpture will continue to move to different locations around the island.

Brazil Prosecutors Sue Agencies Over Haidar Shipwreck, Environmental Risk

By Ana ManoSAO PAULO (Reuters) -Brazilian federal prosecutors in Para state have filed a lawsuit to demand the removal of the hull and oily...

SAO PAULO (Reuters) -Brazilian federal prosecutors in Para state have filed a lawsuit to demand the removal of the hull and oily residues from the Haidar ship, which sank 10 years ago near Vila do Conde port, Brazil's biggest for live cattle shipments.In a statement on Wednesday, Para federal prosecutors recalled the Haidar wreck caused the death of 5,000 cattle and a spill of 700,000 liters of oily residues.A subsequent spill from the Haidar wreck was reported in 2018, prosecutors said, showing that remaining residues inside the hull represent "a constant threat."Some 215,000 liters of oil, diesel, fuel, and lubricant could still be inside the ship, prosecutors added, warning of potentially "catastrophic water pollution" if new spills occur.The sunken vessel still contains carcasses and skeletal remains of the cattle drowned in 2015, they said. Prosecutors are seeking at least 5 million reais ($936,873) in compensation, in addition to 91,400 reais for environmental damages related to the 2018 spill.Defendants include the federal infrastructure department DNIT, Para's environment agency SEMAS, the Para Port Authority CDP, and the companies that owned the ship.They did not immediately comment on the lawsuit.Para, Brazil's biggest live cattle-exporting state, shipped 370,000 head of cattle worth $344 million mainly to Egypt, Morocco, and Algeria in the year through July, according to trade data compiled by state authorities.Beefpacker Minerva owned the cattle ferried on the Haidar in 2015, but it is not a defendant, according to court filings.       (Reporting by Ana ManoEditing by Rod Nickel)Copyright 2025 Thomson Reuters.

Data centers are putting new strain on California’s grid. A new report estimates the impacts

A new report estimates that California’s data centers are driving increases in electricity use, water demand and pollution even as lawmakers stall on oversight.

In summary A new report estimates that California’s data centers are driving increases in electricity use, water demand and pollution even as lawmakers stall on oversight. California is a major hub for data centers — the facilities that store and transmit much of the internet. But just how much these power-hungry operations affect the state’s energy use, climate and public health remains an open question for researchers. A new report released this week by the environmental think tank Next 10 and a UC Riverside researcher attempts to quantify that impact — but its authors say the report is only an estimate without harder data from the centers themselves. “We are just making these reports pretty much in the dark — since there’s almost zero information,” said Shaolei Ren, an AI researcher at UC Riverside and co-author of the report. “We have extremely little information about data centers in California.” Ren and his coauthors conclude that between 2019 and 2023, electricity use and carbon emissions by California data centers nearly doubled, while on-site water consumption slightly more than doubled. Much of the increases were attributable to the electricity required to run artificial intelligence computations. But many of the report’s estimates, including its health impacts, are based on limited data — a key issue researchers said they encountered repeatedly when crafting the report. The report underscores a growing tension in the industry: advocates who support clean energy and experts who study energy demand agree the days of steady, flat energy use at data centers are over, but there’s far less consensus on just how sharply electricity demand will climb. “In very simple terms, a lot of the uncertainty comes from: what is our life going to look like with AI in the next five years, 10 years, 20 years — how integrated is it going to become?” said Maia Leroy, a Sacramento-based advocate who focuses on clean energy and the grid.  “Are we reaching a point where the use is going to plateau, or is it going to continue?” Experts say more transparency is essential to better understand what resources data centers demand in California. Liang Min, who manages the Bits and Watts Initiative at Stanford University, says the state should improve its forecasts for energy demand to support clean energy goals. Min, who investigates AI’s growing strain on the electric grid, told CalMatters that demand at power centers rises in rapid, unpredictable phases and can shift quickly with each new generation of hardware. The California Energy Commission, which plans for energy use and the growth in demand, “can play a pivotal role,” in understanding and adapting to the demands of AI. As demand grows, policy responses lag In Sacramento, efforts to add transparency and guardrails around data centers have struggled this year. California lawmakers shelved most consumer and environmental proposals aimed at data centers, even as they approved a plan to regionalize California’s power grid to help meet demand from the sector. They set aside two bills focused on curbing data centers’ energy use — one requiring operators to disclose their electricity use and another that offered clean power incentives. Gov. Gavin Newsom vetoed a separate proposal that would have required data center operators to report their water use, even after the bill was weakened. In the end, Newsom — who has often highlighted California’s dominance in the artificial intelligence sector — signed only one measure, allowing regulators to determine whether data centers are driving up costs. Mark Toney, who leads The Utility Reform Network and supported the transparency measure, has questioned whether data centers justify the costs they’re pushing onto ratepayers. He warned of the centers’ “voracious consumption of energy and water, increased carbon emissions, and jacking up ratepayer bills.” Hard facts about data centers are tough to find in California because most rent out power, cooling and floor space to other companies, said Ren, the UC Riverside researcher. Such colocation facilities don’t run their own servers or technology, so they report less information publicly than data centers built by major tech companies in other states. While estimates vary, California has the third-most data centers in the country, after Texas and Virginia. DataCenterMap, a commercial directory that tracks data centers worldwide, lists 321 sites across the state. More in California are expected in coming years. The centers operate around the clock and often rely on diesel backup generators to maintain service during power failures — a practice that adds both greenhouse gases and local air pollutants. They also consume energy and water depending on their cooling methods. Rising data-center demand, and rising questions F. Noel Perry, the businessman and philanthropist who founded Next 10, said his organization’s report shines light on what is fundamentally a black box. “To solve a problem, we have to understand what the problem is,” he said.  “We’ve seen the proliferation of data centers in California, in the U.S. and across the world — and we also are seeing major implications for the environment,” Perry told CalMatters. “The real issue has to do with transparency — and the ability of elected officials and regulators to create some rules that will govern reductions in emissions, water consumption.” The report estimated that data centers used 10.8 terawatt-hours of electricity in 2023, up from 5.5 terawatt-hours in 2019, accounting for 6% of the nation’s total data center energy use. Unless growth is curbed or better managed, the report’s authors project demand could rise to as high as 25 terawatt-hours by 2028, equal to the power use of roughly 2.4 million U.S. homes. Carbon emissions from the sector nearly doubled during the same period, climbing from 1.2 million to 2.4 million tons, researchers estimated, while on site water use grew from 1,078 acre feet in 2019 to 2,302 acre feet in 2023. That’s enough to meet the annual water needs of almost seven thousand California households. The report’s authors also estimated the public health costs from air pollution associated with data centers have potentially risen, from $45 million in 2019 to more than $155 million in 2023, with the burden expected to reach as high as $266 million by 2028. Most of those costs stem from indirect pollution produced by fossil-fueled power plants that supply the grid. But authors pointed out that regions dense with data centers — particularly Santa Clara County, home to Silicon Valley — could face higher localized risks from diesel backup generators. Dan Diorio, vice president of state policy for the Data Center Coalition, said the report exaggerates the impact of backup diesel generators, which are tightly regulated and rarely used in California, minimizing their contributions to air pollution. Data centers don’t control the water used in electricity generation, said Diorio. Since those water impacts don’t happen on site, it’s not fair to blame that on the centers themselves.  “It paints a skewed picture of this critical 21st-century industry,” Diorio said in a statement. Diorio said the report also overlooks how cooling technology varies by region and has become more efficient in recent years. But the authors say their findings underscore the need for uniform reporting standards for data centers’ energy and water use. The report said California should establish ongoing local monitoring and review of data centers — and make the findings public. Ren, the UC Riverside researcher, said that California’s cleaner grid and stricter pollution rules are helping blunt some environmental impacts of data centers already. “California — versus the national average — is doing a better job due to the cleaner grid,” he said.

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