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Monitoring a ‘sea of trucks’ in Chicago

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Tuesday, April 16, 2024

This coverage is made possible through a partnership between WBEZ and Grist, a nonprofit environmental media organization. Sign up for WBEZ newsletters to get local news you can trust. Earlier this month, Paulina Vaca stood at the corner of Pulaski Road and 41st Street, one of Chicago’s busiest intersections for truck traffic.  “I’m seeing a sea of trucks,” said Vaca, who works with the Center for Neighborhood Technology (CNT). In less than 60 seconds, she counted eight trucks. That was just the beginning. In less than one hour, about 430 trucks passed through the intersection she was monitoring in Archer Heights, a mostly Latino community on the Southwest Side of the city. She was joined by José Miguel Acosta Córdova, who works for a community group known as the Little Village Environmental Justice Organization.  The two organizations recently put out a report measuring the extent of the city’s truck traffic, counting trucks moving through one nearby suburb and 17 Chicago neighborhoods. Using sensors installed in 35 spots, they tracked the number of medium-and heavy-duty trucks that went past in a span of more than 24 hours. Over the course of a day, more than 5,100 trucks and buses were recorded in Archer Heights — the most of any neighborhood.  That data points to key questions that Chicago and Illinois need to answer, said Acosta Córdova.  “When are there too many warehouses and when are there too many trucks?” he asked. That’s a question that goes beyond Chicago, which happens to be the largest freight hub in North America. Black and brown communities living near the industrial corridors of many urban areas are disproportionately paying for it with their health. Vaca and Acota Córdova are not alone in their research on local traffic.  Across the country, local groups are increasingly finding ways to quantify the extent of localized air pollution, transforming real-time data into useful information that neighbors can use to inform day-to-day decisions like whether or not to stay inside.   José Miguel Acosta Córdova, left, and Paulina Vaca stand by one of the busiest intersections in Chicago, in a neighborhood on the Southwest Side. Grist / WBEZ /Juanpablo Ramirez-Franco While state and federal agencies do actively monitor air quality, their networks are limited, according to a United States Government Accountability Office report published last month. The national ambient air quality monitoring system is not designed to pinpoint pollution hotspots. More and more, localized data is exactly what frontline communities are calling for in order to protect and advocate for themselves.   “They want to know better than what their pollution level probably is,” said James Bradbury, the director of research and policy analysis at the Georgetown Climate Center, a nonpartisan research institution that studies federal and state climate policies.  “They would like to have more granular and specific information that informs what’s happening in their communities,” Bradbury said. Community air quality monitoring programs are taking off across the country, he added.  From Newark, New Jersey to the Bay Area, local organizations are counting trucks and installing small networks of air quality sensors to fill the gap left open by state monitoring systems. As of 2022, Bradbury added that the federal government funded over 130 community air monitoring projects nationwide to the tune of $53.4 million.  Freight continues to be a major economic juggernaut in the Chicago region, and it comes at a significant health cost. The Respiratory Health Association ranked Illinois fifth out of all states for the highest number of deaths from diesel engine pollution per capita in 2023.  Diesel is what, in large part, moves freight around, according Brian Urbaszewski, director of environmental health programs for the Respiratory Health Organization.  “What comes out of the tailpipe of those engines is a collection of air pollutants: everything from nitrogen oxides to fine particulate matter, and even carbon dioxide,” Urbaszewski said. Exposure to these pollutants are associated with a host of medical issues, ranging from respiratory to cardiovascular health impacts. Acosta Córdova said Illinois needs to adopt tighter truck regulations that are already in use in California and several other states. These policies would raise emission standards for tailpipe pollution and set a path for zero-emission trucks.  Vaca said that this new trucking data she and her colleagues compiled won’t surprise longtime residents of the city’s industrial corridors. But it is hard evidence that she hopes will help convince elected leaders that air pollution is an issue of life or death.  Read Next The EPA’s push to clean up trucking goes way beyond 18-wheelers Jake Bittle “Having these numbers, it’s really crucial to then advocate for more electric vehicles,” Vaca said. “To use this to advocate against permitting more industry in areas where it’s already overburdened.”  More than 1,000 lives and over $10 billion could be saved annually if the Chicago region electrified approximately 30% of all light and heavy-duty vehicles, according to a study published last fall by researchers at Northwestern University.  “We found that the majority of the health benefits from those reductions in pollution occur in environmental justice communities or communities of color, or disadvantaged communities in Chicago,” said Daniel E. Horton, a professor of earth and planetary sciences at Northwestern. Earlier this month, the U.S. Environmental Protection Agency announced finalized federal emissions standards for heavy vehicles that would require manufacturers to limit pollution from heavy trucks beginning in 2030. It’s estimated the new policy will prevent a billion tons of greenhouse gas emissions from entering the atmosphere. But Acosta Córdova said the guidelines do not go far enough to address the climate crisis. In Illinois, it’ll be years before residents see relief from freight driven air pollution. “The biggest thing we want to see out of this is more data collection,” Acosta Córdova said. “But, also eventually, [we want] a full transition to zero emission trucks.” This story was originally published by Grist with the headline Monitoring a ‘sea of trucks’ in Chicago on Apr 16, 2024.

Activists found more than 5,000 trucks and buses passing through a single neighborhood in a day.

This coverage is made possible through a partnership between WBEZ and Grist, a nonprofit environmental media organization. Sign up for WBEZ newsletters to get local news you can trust.

Earlier this month, Paulina Vaca stood at the corner of Pulaski Road and 41st Street, one of Chicago’s busiest intersections for truck traffic. 

“I’m seeing a sea of trucks,” said Vaca, who works with the Center for Neighborhood Technology (CNT). In less than 60 seconds, she counted eight trucks.

That was just the beginning. In less than one hour, about 430 trucks passed through the intersection she was monitoring in Archer Heights, a mostly Latino community on the Southwest Side of the city. She was joined by José Miguel Acosta Córdova, who works for a community group known as the Little Village Environmental Justice Organization

The two organizations recently put out a report measuring the extent of the city’s truck traffic, counting trucks moving through one nearby suburb and 17 Chicago neighborhoods. Using sensors installed in 35 spots, they tracked the number of medium-and heavy-duty trucks that went past in a span of more than 24 hours. Over the course of a day, more than 5,100 trucks and buses were recorded in Archer Heights — the most of any neighborhood. 

That data points to key questions that Chicago and Illinois need to answer, said Acosta Córdova. 

“When are there too many warehouses and when are there too many trucks?” he asked.

That’s a question that goes beyond Chicago, which happens to be the largest freight hub in North America. Black and brown communities living near the industrial corridors of many urban areas are disproportionately paying for it with their health.

Vaca and Acota Córdova are not alone in their research on local traffic.  Across the country, local groups are increasingly finding ways to quantify the extent of localized air pollution, transforming real-time data into useful information that neighbors can use to inform day-to-day decisions like whether or not to stay inside.  

Aman and woman stand next to a road intersection with a truck in the background.
José Miguel Acosta Córdova, left, and Paulina Vaca stand by one of the busiest intersections in Chicago, in a neighborhood on the Southwest Side. Grist / WBEZ /Juanpablo Ramirez-Franco

While state and federal agencies do actively monitor air quality, their networks are limited, according to a United States Government Accountability Office report published last month. The national ambient air quality monitoring system is not designed to pinpoint pollution hotspots. More and more, localized data is exactly what frontline communities are calling for in order to protect and advocate for themselves.  

“They want to know better than what their pollution level probably is,” said James Bradbury, the director of research and policy analysis at the Georgetown Climate Center, a nonpartisan research institution that studies federal and state climate policies. 

“They would like to have more granular and specific information that informs what’s happening in their communities,” Bradbury said.

Community air quality monitoring programs are taking off across the country, he added. 

From Newark, New Jersey to the Bay Area, local organizations are counting trucks and installing small networks of air quality sensors to fill the gap left open by state monitoring systems. As of 2022, Bradbury added that the federal government funded over 130 community air monitoring projects nationwide to the tune of $53.4 million

Freight continues to be a major economic juggernaut in the Chicago region, and it comes at a significant health cost. The Respiratory Health Association ranked Illinois fifth out of all states for the highest number of deaths from diesel engine pollution per capita in 2023. 

Diesel is what, in large part, moves freight around, according Brian Urbaszewski, director of environmental health programs for the Respiratory Health Organization. 

“What comes out of the tailpipe of those engines is a collection of air pollutants: everything from nitrogen oxides to fine particulate matter, and even carbon dioxide,” Urbaszewski said. Exposure to these pollutants are associated with a host of medical issues, ranging from respiratory to cardiovascular health impacts.

Acosta Córdova said Illinois needs to adopt tighter truck regulations that are already in use in California and several other states. These policies would raise emission standards for tailpipe pollution and set a path for zero-emission trucks. 

Vaca said that this new trucking data she and her colleagues compiled won’t surprise longtime residents of the city’s industrial corridors. But it is hard evidence that she hopes will help convince elected leaders that air pollution is an issue of life or death. 

“Having these numbers, it’s really crucial to then advocate for more electric vehicles,” Vaca said. “To use this to advocate against permitting more industry in areas where it’s already overburdened.” 

More than 1,000 lives and over $10 billion could be saved annually if the Chicago region electrified approximately 30% of all light and heavy-duty vehicles, according to a study published last fall by researchers at Northwestern University. 

“We found that the majority of the health benefits from those reductions in pollution occur in environmental justice communities or communities of color, or disadvantaged communities in Chicago,” said Daniel E. Horton, a professor of earth and planetary sciences at Northwestern.

Earlier this month, the U.S. Environmental Protection Agency announced finalized federal emissions standards for heavy vehicles that would require manufacturers to limit pollution from heavy trucks beginning in 2030. It’s estimated the new policy will prevent a billion tons of greenhouse gas emissions from entering the atmosphere. But Acosta Córdova said the guidelines do not go far enough to address the climate crisis. In Illinois, it’ll be years before residents see relief from freight driven air pollution.

“The biggest thing we want to see out of this is more data collection,” Acosta Córdova said. “But, also eventually, [we want] a full transition to zero emission trucks.”

This story was originally published by Grist with the headline Monitoring a ‘sea of trucks’ in Chicago on Apr 16, 2024.

Read the full story here.
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The Olympics Need to Change as the Climate Changes

Organizers must reduce the event’s carbon footprint.

The organizers of the Paris Olympic Games have outdone their predecessors in trying to make the Games the most sustainable in the decades since climate change became a concern. But with an estimated 11 million tourists converging on the City of Light for the Olympics, including 1.5 million from abroad, the Games can only be so green.On the plus side, organizers have been serious in their efforts to reduce carbon emissions. They measured the expected carbon footprint of the Games, reduced emissions through energy efficiencies, limited new construction by using existing facilities, added bike lanes, minimized the use of fuel-powered generators and sourced sustainably produced goods for medals and podiums and much of the event materials.Perhaps most important, they’ve talked about their sustainability work at every turn, drawing attention to unsexy details and raising public awareness of environmental issues such as air pollution and extreme heat in France and beyond.Still, international travel is a big contributor to the overall carbon impact of the Games. Organizers of the Rio Olympics in 2016 predicted that slightly more than half of the carbon emissions would come from spectators. Of that amount, 80 percent was expected to be generated by international fans traveling to and from the Games. Organizers saw a low potential to reduce those emissions and said they would need to compensate elsewhere in the preparation and running of the events.What else is to be done? If the world is serious about reducing carbon emissions, the Olympics, like so much else, will have to change even more. Jules Boykoff, who has written extensively about the Olympic Games, rightly argues in Scientific American that “the Games need to reduce their size, limit the number of tourists who travel from afar, thoroughly greenify their capacious supply chains and open up their eco-books for bona fide accountability.”The sustainability efforts in Paris have not all been smooth sailing. The Seine is scheduled to host marathon swimming and the swim portion of the triathlon. But despite spending 1.4 billion euros trying to clean the river, French authorities have achieved inconsistent results: Water tests in June still showed high levels of E. coli. Those numbers improved and crept into the range of safe to swim in late June and early this month. Anne Hidalgo, the mayor of Paris, recently took a swim in the river after canceling an earlier planned plunge because of those high bacteria levels. Her swim was promising, but one heavy rainfall could draw more pollutants into the river and undo much of the progress she celebrated.Subscribe to The Times to read as many articles as you like.

Canada’s 2023 Wildfire Season: An Unprecedented Environmental Catastrophe

A study has found that contaminated mining sites increase the risks associated with fires. The 2023 wildfire season in Canada was the most destructive ever...

The 2023 wildfire season in Canada, the most destructive on record, released significant amounts of arsenic, particularly from mining-impacted areas around Yellowknife, posing increased environmental and health risks.A study has found that contaminated mining sites increase the risks associated with fires.The 2023 wildfire season in Canada was the most destructive ever recorded, and a new study suggests the impact was unprecedented. The research found that four wildfires in mine-impacted areas around Yellowknife, Northwest Territories, potentially contributed up to half of the global annual arsenic emissions from wildfires.The work, led by researchers at the University of Waterloo and Nipissing University, is the first to calculate the amount of arsenic that was stored in areas at high risk of wildfires around Yellowknife. Looking at data from the past five decades, the team estimates the 2023 wildfires potentially released between 69 and 183 tonnes of arsenic.Arsenic, a potent toxin, that the World Health Organization associates with diabetes, cardiovascular disease, various cancers, and infant mortality, can be transformed by wildfire and released into the environment from the soils that normally sequester it. The Growing Risk of WildfiresGiven that the frequency and severity of wildfires are expected to increase because of climate change, the researchers caution that in any regions in the world where annual wildfires intersect with past or present mining and smelting operations, future fires could present a major risk for releasing stored toxins back into the environment.“Yellowknife has a decades-long history of mining, which has led to an accumulation of arsenic in the surrounding landscape. However, Yellowknife is not unique in this regard, Canada has many industrially contaminated sites that are vulnerable to wildfire,” said Dr. Owen Sutton, a postdoctoral fellow in the Faculty of Environment at Waterloo.The amount of arsenic released by wildfires depends on a multitude of factors, such as fire temperature, depth of the burn, and soil type, and the combination of these variables.“While our research has raised the alarm on this issue, we will be the first to argue there is an urgent need for collaborative investigation by wildfire scientists, chemists, environmental scientists, and policy experts,” said Dr. Colin McCarter, professor in the Department of Geography at Nipissing University and Canada Research Chair in Climate and Environmental Change. “By integrating diverse fire management techniques, including Indigenous fire stewardship, we can hopefully mitigate these emerging risks to human and environmental health.”The researchers found that arsenic emissions from wetlands were the most concerning because of their tendency to store contaminants compared to forests. Moving forward, they will continue quantifying the amount of toxins being stored by northern peatlands and study the potential release of other metals from those landscapes.Reference: “Globally-significant arsenic release by wildfires in a mining-impacted boreal landscape” by O F Sutton, C P R McCarter and J M Waddington, 20 May 2024, Environmental Research Letters.DOI: 10.1088/1748-9326/ad461a

As a Toxic Haze Blurs the Rockies, Residents Worry About Plans for More Drilling

During Colorado’s ‘ozone season,’ children and adults alike stay indoors. Drilling wells near the suburbs could make it worse. The post As a Toxic Haze Blurs the Rockies, Residents Worry About Plans for More Drilling appeared first on .

For more than half the days since May 31, a toxic haze has blurred the towering Rocky Mountains along the eastern Front Range, prompting Colorado health officials to warn residents to reduce time outdoors to avoid damage to their lungs.   The smog forced older adults to forgo walks, asthma sufferers to reach for inhalers and parents to keep toddlers inside. It also heightened concerns about what it might mean for 3 million people here if state regulators approve oil and gas proposals that call for scores of new wells. Emissions from energy industry operations and traffic are the main drivers of the nine-county metropolitan Denver region’s failure to meet federal air quality standards for the last two decades.   “I am completely dumbfounded!” Aldo Plascencia, an Aurora resident who lives near where hundreds of new wells would be drilled, wrote on a community Facebook page on July 11.   “When dropping my kids at school this morning, parents were being notified that all outdoor field trips were being canceled today due to high ozone activity,” he added. “Why would anyone in their right mind consider permitting fracking so close to schools and houses — this will make matters worse.”   A decision on a 156-well Lowry Ranch proposal is imminent — state regulators have scheduled a hearing for July 30. Drilling would occur along the southeastern edge of greater Denver, under homes, a reservoir that holds the region’s drinking water and adjacent to one of the nation’s most polluted Superfund sites.    The 50-square-mile site is also near air monitors that recorded some of the region’s worst air pollution levels from 2019 to 2022. In the first 10 years of operation alone, the Lowry Ranch project would emit hundreds of tons of smog-forming compounds per year, as well as tens of thousands of tons of climate warming gases, according to Geosyntec, a consultant hired by Crestone Peak Resources, the operator proposing the plan. The wells could be in operation for 25 years.     In the month after this year’s annual “ozone season” began May 31, Colorado health officials issued more air quality alerts than in any similar period since 2016.     Cities along the eastern flank of the Rockies already rank among the worst in the nation for lung-damaging ozone pollution, according to the American Lung Association’s 2023 “State of the Air” report. Denver was ranked sixth worst, with  every county in the area receiving a failing grade. Pollution is so bad some days that a monitor at Rocky Mountain National Park registers levels that violate Environmental Protection Agency standards.   Greater Denver’s topography, which traps pollutants, contributes to the intractable problem, as does human-caused climate change. Global warming made June’s record hot conditions — the second warmest since 1872 — “more likely,” according to Climate Central, an organization that uses data and science to link weather-related events to global warming.   Colorado’s most densely populated area overlaps with some of the nation’s most profitable oil and gas fields — amplifying the health risk. The state tied with Alaska as the country’s fourth-largest oil producer and ranked as its eighth-biggest gas producer.   Vehicles and oil and gas operations emit nitrogen oxides and volatile organic compounds, which react when heated by the region’s plentiful sunlight to create ground-level ozone. In the month after this year’s annual “ozone season” began May 31, health officials issued more air quality alerts than in any similar period since 2016.   “We are having a difficult year,” Mike Silverstein, executive director of the Regional Air Quality Council, said at an online planning forum on July 18. The council advises state regulators on strategies to curb pollutants.   “We are exceeding the ozone standards at most of our monitoring stations,” he added, and “we are midway through ozone season.”   According to estimates used by the council, by 2026, emissions from oil and gas operations will comprise about 36% of the 253 tons per day of volatile organic compounds released in the region’s atmosphere. The second highest emitting category will be vehicles at 11%.   The industry is expected to account for 47% of the 144.5 tons of nitrogen oxide emitted per day in 2026 — more than three-and-a-half times as much as power plants and other large permitted facilities that pollute combined, according to the models used. It’s not possible, however, to draw a straight line from these percentages to the proportion of the region’s ozone pollution created by oil and gas extraction, David Sabados, the air quality council’s communications director, said in an email.   Because of where oil and gas “operations are located, as well as specifics of the types of volatile organic compounds that come out of drilling,” he wrote, “it’s estimated that cars are nearly as responsible for ozone creation as oil and gas.”     A total of 56 oil and gas wells are planned within one mile of the Aurora Reservoir, a major source of drinking water.     Regardless of what causes them, the emissions can be deadly. Air pollution from fossil fuel production in the U.S. in 2016 resulted in 7,500 excess deaths, 410,000 asthma incidents and 2,200 new cases of childhood asthma, with $77 billion in total health impacts, scientists found in a 2023 study published in Environmental Research: Health.   States with high oil and gas related emissions but lower population, such as Colorado and New Mexico, “have the highest impacts per million people,” scientists found.   “If you take any region that has a lot of people and put an air pollution source in it, all evidence points toward you would expect health impacts,” Jonathan Buonocore, the study’s lead author and an assistant environmental health professor at Boston University, told Capital & Main.   Crestone Peak Resources, the company proposing the 156-well project near suburban Aurora, said in documents filed with the Energy & Carbon Management Commission that it planned to mitigate emissions by electrifying drill rigs, among other strategies, so its operations would create “no adverse health risks to nearby communities, including sensitive individuals.”   To date, areas to the south and east of the Denver metropolitan area have seen little oil and gas development, compared to the state’s largest fossil fuel field north of the city. That could be about to dramatically change. A Capital & Main/FracTracker Alliance investigation found that the Lowry Ranch project, and a nearby 20-well plan proposed by GMT Exploration Company, LLC, could, if approved, result in about 229 wells being drilled near Aurora, the state’s third largest city.   A total of 56 wells are planned within one mile of the Aurora Reservoir, a major source of drinking water, the investigation found. About 125,000 people live within five miles of the proposed projects, the analysis showed.   These projects represent an expansion of fossil fuel production from Weld and Broomfield counties, to the north, looping around Denver’s eastern edge, where drilling will take place just yards from dense suburbs, an interactive map created using existing well locations, pending and approved permits and drilling proposals kept by the Energy & Carbon Management Commission found.  

Reforestation Initiative Tackles Climate Change in Guanacaste

To celebrate the 200th anniversary of the annexation of Nicoya County, Coopenae, the Environmental Bank Foundation (FUNBAM), and the Volunteer Fire Brigade (AAAS Tamarindo) have joined forces to initiate the Bicentennial Forests Project. In the first stage, 1,000 endemic trees will be planted in San Francisco Park, part of the Baula Marine Reserve, at the […] The post Reforestation Initiative Tackles Climate Change in Guanacaste appeared first on The Tico Times | Costa Rica News | Travel | Real Estate.

To celebrate the 200th anniversary of the annexation of Nicoya County, Coopenae, the Environmental Bank Foundation (FUNBAM), and the Volunteer Fire Brigade (AAAS Tamarindo) have joined forces to initiate the Bicentennial Forests Project. In the first stage, 1,000 endemic trees will be planted in San Francisco Park, part of the Baula Marine Reserve, at the Liceo de la Comunidad 27 de Abril high school, and in the El Trapiche sector. This initiative aims to reforest these areas and mitigate the risks associated with climate change. The project will enhance the water recharge areas of Guanacaste, which have been affected by forest fires, and provide training and education to young people in socially vulnerable situations. This will promote the development of soft skills, equipping them with tools to improve their quality of life. This year, there have been 141 forest fires, 90 of which have occurred in Guanacaste, affecting a total of 28,000 hectares. Coopenae’s Bicentennial Forests will also create green jobs for female heads of households in the area. They will be responsible for the care and maintenance of the trees, primarily Jícaros, for five years until the trees reach the recommended height and adapt to the environment. The forest will be enriched with native species, and the planting will be alternated with tree varieties that have forest viability and several species that directly benefit the aquifers. “We have generated the Bicentennial Forests here in the areas of Tamarindo, El Trapiche, and 27 de Abril. These projects enrich the secondary forest, and we are planting native trees such as Jícaro, laurel, Guanacaste, guacalillo, and beach almond to bring freshness to the locality. This initiative has an environmental background and a social focus,” said Victor Sequeira, coordinator of FUNBAM’s Footprint of the Future Program. In addition to the immediate benefits of reforestation and job creation, the Coopenae Bicentennial Forest is designed with a long-term focus. The inclusion of native species and forest viability ensures not only the recovery of local biodiversity but also the sustainability of the ecosystem over time. This holistic approach seeks to restore the natural balance and strengthen the region’s water resources. The post Reforestation Initiative Tackles Climate Change in Guanacaste appeared first on The Tico Times | Costa Rica News | Travel | Real Estate.

Asphalt burns, delirium, body bags: extreme heat overwhelms ERs across US

More than 120,000 heat-related ER visits were tracked in 2023, as people struggle in record-breaking temperaturesIn his 40 years in the emergency room, David Sklar can think of three moments in his career when he was terrified.“One of them was when the Aids epidemic hit, the second was Covid, and now there’s this,” the Phoenix physician said, referring to his city’s unrelenting heat. Last month was the city’s hottest June on record, with temperatures averaging 97F (36C), and scientists say Phoenix is on track to experience its hottest summer on record this year. Continue reading...

In his 40 years in the emergency room, David Sklar can think of three moments in his career when he was terrified.“One of them was when the AIDS epidemic hit, the second was Covid, and now there’s this,” the Phoenix physician said, referring to his city’s unrelenting heat. Last month was the city’s hottest June on record, with temperatures averaging 97F (36C), and scientists say Phoenix is on track to experience its hottest summer on record this year.“All three of these situations are sort of disasters, where we became overwhelmed by something that had really serious effects on a large part of our population.”In recent months. he and his colleagues have seen waves of patients coming into the ER with heat stroke, dehydration and even asphalt burns.He described seeing several patients in a single shift with heat stroke. “Typically people aren’t talking at all, they’re just breathing and gasping and are in very bad shape,” he said of the most severe cases.As the climate crisis intensifies and shatters heat records, emergency rooms across the country are filling up with heat-sick patients. Officials recorded nearly 120,000 heat-related emergency room visits in 2023 alone, a “substantial” increase from previous years, according to the Centers for Disease Control and Prevention.At least 27 people in Maricopa county, where Sklar works, have died from heat so far this year, with hundreds of other deaths under investigation. But these figures are likely underestimates, as heat-related deaths are often undercounted, especially among outdoor workers.“That’s the very tip of the iceberg,” said Sklar. “We really need to start thinking about heatwaves as a disaster.”Extreme heat is not recognized by the federal government as a disaster. Earlier this month, 14 attorneys general led by Arizona’s Kris Mayes, petitioned the Federal Emergency Management Agency to declare wildfire smoke and extreme heat as major disasters.“We’re used to calling hurricanes, tornadoes and earthquakes disasters where there can be a lot of casualties, but they get done with pretty quickly in most cases,” Sklar said. “[Heat] is a slow rolling disaster that goes on for weeks and months, and the people who are being affected are just really, really sick.”Firefighters attend to a man having trouble breathing during a heatwave in Phoenix, Arizona, on 20 July 2023. Photograph: Bloomberg/Getty ImagesHeat is the deadliest weather disaster, killing more people each year than hurricanes, floods and earthquakes combined. Last month was the hottest June on record and record-breaking heat has continued to blanket much of the US in recent weeks.Health workers say that heat is straining emergency rooms that are already understaffed, overcrowded, and still grappling with the consequences of the Covid-19 pandemic.“We’re brimming in our emergency departments to begin with,” said Ellen Sano, a physician at Columbia University Medical Center. “So every time you add the environmental effects of heat or viral infection, we struggle with capacity.”Earlier this month, millions of people in Texas lost power during a deadly heatwave after Hurricane Beryl made landfall. Outages in some areas lasted over a week, with local hospitals reporting an uptick in heat-related illnesses. Officials set up a medical shelter at a local arena to hold patients who were ready to be discharged from the hospital but whose homes still lacked electricity.“There are so many patients that we have to transfer because all these hospitals are so full,” said Owais Durrani, a Houston emergency room physician. “At the hospital, when, I park I see a row of ambulances around the corner. When you walk in, [you’re] seeing rows and rows of patients in hallways and every bed is full. That’s terrifying to come to work into.”Durrani said that heat at night, combined with power outages, contributed to people getting sick. “You may have had a day where you exerted yourself, you go home and you drink some fluids, you have air conditioning and you can recover,” he said. “But there is no recovery when you have no power.”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 info about charities, online ads, and content funded by outside parties. For more information see our Privacy Policy. We use Google reCaptcha to protect our website and the Google Privacy Policy and Terms of Service apply.after newsletter promotionSince 1970, summers have warmed by an average of 2.5F, with overnight temperatures increasing by 3F across the US, according to Climate Central.Children, the elderly, pregnant people, outdoor workers and those with chronic medical conditions including diabetes and high blood pressure are the most vulnerable to heat stress – an excessive buildup of heat at a level that is more than the body can release. Unhoused people are another high-risk group, due in large to lack of air conditioning, prolonged exposure and often unaddressed health issues, many of which heat exacerbates.“They’re sleeping and living on the asphalt, and overnight temperatures don’t get as cool,” said Durrani, who says he’s seen patients come in with asphalt burns.Some medication for chronic conditions can put people at an increased risk of heat stroke. Amphetamines, commonly used to treat ADHD, can raise a person’s body temperature, and some antidepressants, antihistamines and beta blockers can impair the person’s ability to cool down.“People who are taking certain medications for psychiatric illnesses, those medications can interfere with your sweating mechanism,” said Gredia Huerta-Montañez, a pediatrician and environmental health researcher at Northeastern University. “If you leave your medications in the car during extreme heat days, those medications can suffer changes and be less effective.”Sklar, the Phoenix physician, said that other underlying conditions – including untreated mental illnesses – also place patients at high-risk. “Not being on medication for people who have schizophrenia can be a problem because they sometimes make decisions that are not in their best interest,” said Sklar. “So they may just walk and walk outside to a point where they collapse.”Treatment for heat illness varies on the state of the admitted patient, but if a person is sick enough to be hospitalized, healthcare workers typically apply ice packs to the neck and groin – places with a lot of blood flow and also areas where bodies tend to sweat according to Sklar. Cool intravenous fluids can bring down the body temperature and treat dehydration at the same time.Patients are sometimes so overheated they’re delirious or losing consciousness, Sklar said. That often indicates heat stroke, where core body temperatures may reach above 104F. In such cases, speed is imperative as internal organs can start to fail.In those cases, physicians sometimes place patients in body bags filled with ice.“Turns out that those are actually relatively effective for this, because they hold the water well, and they’re the right size for a human body,” said Sklar. First responders, including fire departments, use similar methods. “Because they’re unconscious, they’re not really feeling the pain of the cold,” he added. “The key is to cool them quickly.”

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