An anonymous reader quotes a report from the Associated Press: The contiguous United States sizzled to its hottest month ever last month, according to the National Oceanic and Atmospheric Administration. July averaged 76.89 degrees Fahrenheit (24.94 degrees Celsius) across the Lower 48 states, eclipsing the Dust Bowl's July 1936 by an eighth of a degree. Records go back to 1895. [...] Although it was unusually cool in Alaska, hotter-than-normal conditions blanketed the Lower 48, with the most excessive heat in the Mountain West, Southwest, Northern Plains and Southeast. The heat was so widespread that every one of the Lower 48 states was at least 1 degree Fahrenheit (nearly 0.6 degrees Celsius) warmer than the 20th century average, said Russ Vose, chief of monitoring at NOAA's National Center for Environmental Information. [...] The biggest driver of the record heat was nighttime lows that smashed the old mark for hottest minimums by 0.7 degrees, NOAA said. Hotter nights are a classic sign of human-caused climate change, according to scientists and several studies in peer-reviewed literature. NOAA's calculation is based on averaging 24 hours of temperature, not just highs or lows. "If you're talking heat waves, that nighttime low is incredibly important for determining total heat stress," [said meteorologist Jeff Masters of Yale Climate Connections]. "So if it doesn't cool off at night, your body doesn't have time to readjust to all the heat." As nighttime temperatures increase, more people die and lose sleep, studies show. The years 2021 and 1936 tie for America's hottest summer, which is June through August. Through July, 2026 is a shade cooler than 2021, which was powered by record heat in June. Because of climate change, Masters said, "this may be one of the coolest years we're gonna experience for the rest of our lives." What's needed, Masters said, is "to stop burning so many fossil fuels. We also need to be spending money to adapt to the new climate that we've put in place."

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The Dallas Business Journal reported Monday that the U.S. multinational paper goods company Kimberly-Clark announced "that its researchers identified and advanced patented technology transforming fibers from hesperaloe, a low-water-use plant with pointy leaves that thrives in the southwest region of the country, into material for paper towels." Discovering an alternative to conventional wood fiber "could reshape how the company, and the industry at large, manufactures products," according to article. And the move comes "amid growing pressure on manufacturers regarding their reliance on wood fibre from freshly felled trees," reports The Telegraph. "Campaigners claim that more than one million trees are cut down every day..." Unlike trees, hesperaloe can be grown on dry, low-quality farmland unsuitable for most food crops and harvested much more quickly. Kimberly-Clark said it had tested more than 70 potential materials before settling on hesperaloe. Earlier candidates included wheat straw, corn waste, seaweed, algae and chicken feathers. The US consumer goods giant will now develop the fibre at a pilot factory in Yuma, Arizona, working with local growers to determine whether the crop can be cultivated for commercial use in its tissue products. "This represents an exciting moonshot for Kimberly-Clark and the culmination of more than two decades of materials and plant science expertise," said Craig Slavtcheff, who is helping develop the new toilet paper. However, the company said products made from hesperaloe remained years away from supermarket shelves, with further research needed before the fibre could be produced at the scale required for global manufacturing. The US-based company has invested about $250m (£190m) in the project and filed more than 30 patents linked to the technology.

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A new study argues that life may have emerged twice on Earth. "Two of the main lineages of life -- bacteria and archaea -- may have independently figured out the secrets of metabolism that upgraded them from non-living to living," reports ScienceAlert, citing a new study that "focused on the most rudimentary set of chemical reactions thought to enable this transformation." From the report: "The surprise is that the enzymes that catalyze those reactions are not conserved across the evolutionary divide that separates bacteria and archaea," says William Martin, a biologist at Heinrich Heine University Dusseldorf in Germany. "The new data leave only one conclusion. The bacterial and archaeal lineages made the transition to the free-living state independently. Only free-living cells are alive. "Let's call it by name: we are looking at one origin of the genetic code, but two origins of life." That's a huge claim to make, especially when defining what life even is can be surprisingly tricky. The findings have been published in the journal Science Advances.

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South Korea recorded its highest temperature since modern observations began in 1904, with the city of Yangsan reaching 42.5C as temperatures exceeded 40C for a fifth consecutive day. Authorities warned residents to "immediately stop all outdoor activities." The Guardian reports: More than 20 localities in South Korea were under emergency heatwave alerts on Sunday -- a new warning category introduced this year to better address rising temperatures. An emergency alert is issued when areas experiencing a heatwave are forecast to hit perceived temperatures of 38C or an actual temperature of 39C for the day. Issuing a heat warning, the weather agency urged people to "immediately stop all outdoor activities," adding that "indoor spaces without air conditioning are dangerous." "Move immediately to a cool place, such as a designated cooling centre or a shaded area, and stay hydrated while resting," it advised. Fearing for those people most vulnerable to heat, the prime minister, Han Seong-sook, ordered local officials to strengthen safety checks on residents and to ensure a stable power and water supply was maintained. [...] Korea Meteorological Administration (KMA) data show the average annual number of heatwave days in the country has more than doubled to 19 in the past five years.

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The U.S. company Meteomatics has created an automated weather-monitoring system that uses drones to collect atmospheric data at multiple altitudes before returning to recharge and upload their findings. The so-called Meteobase, which consists of a base station on the ground with a drone that can be launched and recovered automatically, "is highly weather resistant and keeps the drone at a comfortable temperature," reports The Guardian. "It can send out one data-gathering mission a day, or multiple flights to monitor fog, icing, an advancing weather front, or other fast-changing conditions." The report says the reusable drones could offer a cheaper, more controllable alternative to helium weather balloons, especially for tracking rapidly changing conditions.

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A new analysis of 89 major geological events over the past 260 million years found evidence that mass extinctions, volcanic eruptions, ocean crises, and other upheavals may cluster around a roughly 27.5-million-year cycle. The cause remains unknown, with possibilities ranging from mantle activity and orbital changes to speculative galactic influences. Slashdot reader alternative_right shares a report from ScienceAlert: One possibility lies deep within Earth itself. The planet's mantle is constantly circulating through convection, albeit at an almost unimaginably slow pace. Periodic changes in mantle convection, or the initiation of mantle plumes, could influence volcanism, plate tectonics, mountain building, and other large-scale geological processes. Because these systems are closely interconnected, disturbances originating deep within Earth could eventually ripple through the planet's surface, oceans, climate, and biosphere. Another hypothesis focuses on interactions between Earth's surface and interior. Long-term orbital variations influence climate and sea level, periodically redistributing enormous amounts of water, ice, and sediment across the planet. [New York University geologist Michael Rampino] discusses the possibility that these changing surface loads subtly modify stresses within Earth's crust and upper mantle, potentially influencing tectonic and volcanic activity over geological timescales. Rampino also considers possible influences beyond Earth, an idea he has been weighing up since the 1980s. As the Solar System orbits the center of the Milky Way, it oscillates above and below the galaxy's mid-plane, with the timing of these passages aligning with that of Earth's major upheavals. These crossings, other researchers have suggested, could also gravitationally perturb comets in the distant Oort Cloud, increasing the likelihood of large asteroid impacts. Another, even more speculative, hypothesis suggests that if dark matter is concentrated near the galactic plane, a fraction of it could occasionally be captured by Earth. Over millions of years, this process could generate small amounts of internal heat, potentially influencing geological activity. At present, however, there is no direct evidence supporting either mechanism, so they remain very controversial. Large asteroid impacts are discussed separately in the paper. Although they were not included in the statistical analysis of the 89 geological events, the timing of several of Earth's largest known impact craters appears broadly consistent with the proposed 27.5-million-year rhythm, as Rampino has discussed in earlier papers. Rampino suggests this correspondence may warrant further investigation, but stops short of claiming a causal relationship.

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270,000 people have been displaced by wildfires in France and Spain, reports the Guardian. A wildfire even forced evacuations in Scotland. And wildfires "have now scorched four million acres of land in the U.S.," reports NPR, as tens of millions of people in North America "are continuing to endure hazardous smoke from out of control wildfires burning across Canada and the Western U.S." At America's National Interagency Fire Center, NPR's wildfire correspondent says all of America's firefighting resources have now been deployed across the country. "So if we get another big fire, we're in trouble... International aid could be harder to come by if the situation in Southern Europe gets worse and firefighters are going to be needed there." Meanwhile Toronto was blanketed this week "with eye-watering, cough-inducing soot," writes a climate-change reporter for the Toronto Star newspaper, "briefly giving us the worst air quality in the world." But looking to the future after a wildfire that's 50% larger than any in Ontario's history (315,000 hectares or 778,331 acres), he had this to say about the eye-watering smoke. "It will be back." The article's headline warned of "Our smoke-filled future" and how Canada "must prepare for bigger wildfires, every summer — forever." Even if global carbon emissions were cut dramatically, so long as any greenhouse gases are being put into the atmosphere, climate scientists say the world will continue to get hotter. And as the temperature rises, the forests dry out and the wildfires will get bigger, stronger and more frequent. "It's not going to get better. It's going to get worse," said Edward Struzik, a fellow with the Institute for Energy and Environmental Policy at Queen's University and the author of Dark Days at Noon: the Future of Fire . "These fires aren't going away. Toronto is going to get smoke every summer...." The best solution would have been to dramatically cut emissions years ago. The harsh scientific reality is there's nothing we can do to stop wildfire smoke from blanketing cities for a few days every summer — and it's going to continue for decades to come. We're all going to need to buy air purifiers and masks and get used to it.... "The idea that we can thin our way through the boreal forest boggles the mind," [says Zeke Hausfather, a climate scientist at Berkeley Earth, an independent non-profit research organization]. "There aren't enough people in Canada to do that." The boreal forest in Canada is an enormous and largely roadless expanse bigger than the entire European Union. In comparison, America's much smaller forests are criss-crossed by roads, making firefighter access much quicker and easier. And the nature of the forests is fundamentally different as well, said Hausfather, who wrote an article summarizing research on the subject. "Western U.S. forests have evolved for frequent low-level fires that burn out the undergrowth — usually every five to 30 years," he said. "Historically, before fire suppression, fires would burn through, and they wouldn't actually kill the trees. They'd just kill smaller trees and clear out the brush." "The boreal forest is a fundamentally different beast," he said. "It's an ecosystem designed to burn." With smaller, more densely packed trees, the boreal is wetter and colder and doesn't burn anywhere near as often — every 100 to 200 years on average, Hausfather said. But when fire does erupt, it's often much more intense, burning up into the canopy and levelling everything in its path... Clearing out the dead wood on the ground wouldn't prevent, or even slow, the canopy fires that sweep the boreal, said Hausfather.

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"In many parts of the world, lakes are drying out at a scale so massive that scientists are warning they may be emitting enough greenhouse gases to rival our fossil fuel habit," reports ScienceAlert: In a new study published in Science, scientists say the Aral Sea — the world's largest desiccated lake — has emitted a whopping 204 megatons (~225 million US tons) of carbon dioxide since it was drained in the 1960s... The study estimates that between 1960 and 2022, the evaporating sea has released 204 megatons of carbon dioxide into the atmosphere, based on site surveys and core samples collected from across the dry lakebed... The new study suggests that rehydrating the entire basin could come with enormous benefits to the environment, not just within the sea itself, but at a global level. "There is a hidden carbon treasure beneath the Aral Sea," says biochemist Rafael Marcé from the Spanish National Research Council. "If these sediments remain exposed, carbon will continue to be released into the atmosphere. If the sea is re-flooded, that same carbon could shift from being a source of emissions to becoming part of the climate solution." According to the researchers' calculations, re-flooding the lakebed could prevent the release of the estimated 165 megatons of carbon that remain. The study also revealed that nearly one-fifth of the Aral Sea's carbon emissions are actually being released as wind blows away sediment on the lakebed, a factor that researchers had not accounted for in the past. Thanks to Slashdot reader schwit1 for sharing the article.

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Longtime Slashdot reader BeaverCleaver shares a report from the BBC: The wreckage of a Pan American Airways plane has been found 74 years after it plunged into the Atlantic Ocean in a crash that prompted mandatory airline safety briefings. The Clipper Endeavor was found 2,000ft (610m) below sea level off the coast of Puerto Rico with a sonar-equipped drone. It went down on April 11, 1952, following multiple-engine failure shortly after take-off. Everyone onboard survived the impact -- but passengers struggled to locate life vests and rafts as the plane rapidly sank. Of the 69 passengers and crew onboard, just 17 survived. The disaster led to sweeping reforms in aviation safety, including compulsory pre-flight safety briefings on every commercial flight. [...] Today, before every commercial flight, cabin crew are required to outline where a plane's exits are, as well as the location of life vests and how to inflate them.

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Scientists have rediscovered a healthy coral reef off the coast of Benin more than 60 years after surveyors first hinted at its existence. "At least eight coral types and eight fish species have formed a thriving ecosystem on this long-forgotten site," reports Inside Climate News. "What they had captured was a wealth of marine life: six types of soft coral; two black corals; and eight species of sheltering fish, from golden African snappers to the Monrovia doctorfish." From the report: While no coral samples have yet been extracted, researchers have classified the site as a mesophotic coral ecosystem (MCE). Such systems are light-dependent communities existing at the lower limits of reef-building corals. At more than 175 feet below the surface, the coral garden they discovered appears patchily scattered on a rocky substrate. Bridging the gap between shallow reefs and deeper benthic habitats, MCEs are home to distinct species and unique environmental conditions. While scientists are increasingly recognizing their ecological and climatic importance, they remain among the least explored elements of tropical and subtropical marine biodiversity. And this one has real potential to unlock new information about coral history. "Since it's an undisturbed marine ecosystem, it can help through carbon dating or paleoclimatic study to tell us which kind of climate system has occurred here in the past," said [Gerard Zinzindohoue, the project lead for Coral Reefs Rediscovering & Exploration in Benin]. "It's better to know the past to help explain the present, and help know which kind of direction we can take in the future." In addition to the blackbar soldierfish, West African goatfish, and Guinean angelfish filmed darting through the reef, the discovery presents potential conservation claims for other marine life. "We will be advocating for its full protection, perhaps by setting up a marine protected area around it," said [Houangninan Midinoudewa, an oceanographic researcher at the Benin Marine Conservation Club], who specializes in elasmobranchs -- the study of sharks, rays, and skates. Midinoudewa is currently submitting an application to designate the area as an Important Shark and Ray Area with the International Union for Conservation of Nature. Based on the knowledge of local fishermen, Midinoudewa is confident the reef is home to sawback angel sharks, silky sharks, brown skates, and marbled stingrays. The team behind the discovery hopes this will spark a wave of similar discoveries in the waters off West Africa, an area of the world underserved by scientific research projects. "I hope the Gulf of Guinea will be a hub for research because we know our resources are being exploited and people [need to] know exactly what we have and why we should care," said Midinoudewa. Zinzindohoue agrees: "We don't need to wait for others to come to our country to show us what is under our sea. We are the ones who must take responsibility."

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An anonymous reader shared this report from the Los Angeles Times: A federal judge has halted California's groundbreaking "Truth in Recycling" law, which aims to reduce consumer confusion about which packaging can be recycled. [Originally planned to take effect October 4th], California's recyclable packaging law prohibits manufacturers from using a "chasing arrows" recycling symbol on products or materials unless they are actually being recycled in a meaningful way, which the law quantifies... A coalition of farming, forestry, restaurant and packaging organizations sued the state in March, arguing the law violates their right to free speech. They argued that Senate Bill 343 operates as "government-imposed censorship." Judge William Hayes agreed that their challenge has merit, and on Tuesday ordered California Atty. Gen. Rob Bonta, the defendant in the case, to pause enforcement of the law "until further order of the Court...." Advocates of reducing plastic use disagreed. "The court got it wrong, and I'm confident that the state will ultimately prevail," said Nick Lapis, director of advocacy for Californians Against Waste. "S.B. 343 does not violate the 1st Amendment; it requires companies to tell the truth when they make recyclability claims. Suggesting that the 1st Amendment protects misleading environmental marketing is inconsistent with the basic principles of consumer protection that states like California have implemented for decades." In January, CalRecycle, the state's waste agency, reported that less than 10% of most single-use plastic materials in the state were being recycled. Even yogurt containers and margarine tubs — made of ubiquitous polypropylene, or No. 5 plastic — are being recycled at a rate of only 2% in the state, the report said. Only 5% of colored shampoo and detergent bottles, made from polyethylene, or No. 1 plastic, are getting recycled... Plastic materials that can't be recycled are typically sent to landfills or sometimes illegally shipped overseas, where they are burned or end up in landfills, rivers and waterways. The bill's author told the Los Angeles Times "All you have to do is look at the numbers. These products are not getting recycled, despite what the industry is claiming. They are just confusing consumers, clogging the waste stream, polluting the environment, leading to higher and higher prices for local governments and ratepayers." He argues the symbols shouldn't be used to "confuse people who see the symbols [on products] and assume they can be recycled." The article also quotes Judith Enck, former Environmental Protection Agency regional administrator and president of the nonprofit Beyond Plastics. "Given the long history of the plastics industry deceiving the public about plastics recycling, this is an especially bad outcome. It is a reminder that the plastics industry has enough money to fight even the most modest policy designed to protect people and the planet."

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An anonymous reader quotes a report from Ars Technica: As smoke from hundreds of burning wildfires spread across Canada and the United States, the first three operational satellites in the Google-backed FireSat program successfully launched into orbit. The satellites will begin providing wildfire detection capable of spotting even small fires in the United States, Australia, and Europe before the end of the year. The launch of the microsatellites aboard a SpaceX Falcon 9 rocket from Vandenberg Space Force Base in California on July 7, 2026 marks a transition to "initial operational capability" for the FireSat constellation managed by the nonprofit Earth Fire Alliance. After a three-month testing period, the three satellites will begin actively providing data to fire agencies while covering every fire-prone region on Earth at least twice per day. FireSat represents the first satellite constellation purpose-built for detecting wildfires, including spotting smaller fires that other satellites may miss. The satellites were designed by California-based satellite manufacturer Muon Space and have received over $15 million from Google to support initial deployment. Other notable financial supporters include the Bezos Earth Fund that committed $26 million. Each satellite is equipped with multispectral imaging that can peer through smoke and clouds and detect fires as small as five by five meters -- about 16 by 16 feet. That capability was proven by a FireSat Protoflight satellite that launched in March 2025 and collected more than one million images, while showing it could detect low-intensity blazes invisible to existing satellites. The "early adopter" organizations that will start using FireSat data this year include fire agencies in California, Colorado, Australia, and Portugal. As more satellites launch, the FireSat program aims to provide the latest imagery anywhere in the world on an hourly basis by 2029. Such imagery would eventually become available every 20 minutes once the full constellation of more than 50 satellites is launched by the early 2030s. Detection of small wildfires before they burn out of control could prove extremely helpful. The Earth Fire Alliance has projected that even an hourly revisit rate by the FireSat constellation could help save more than $1 billion in fire damage costs and prevent nearly 22 million tons of carbon emissions, along with protecting 3,500 homes and 1.3 million acres of land. To assist with that capability, Google Research plans to use the company's AI models to compare operational FireSat data with historical images in order to accurately identify very small fires and to inform predictive modeling of wildfires. Google celebrated the launch of the first operational FireSat satellites by describing the event as "another tangible step forward in putting practical AI to work for climate resilience."

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As America began celebrating its 250th birthday Saturday, 842,000 homes reported power outages, notes ABC News. Figures from tracking site PowerOutage showed states in America's Northeast and Midwest were impacted by severe weather and extreme heat. That number, which will fluctuate throughout the day as crews work to restore power, is for households, meaning that the number of people impacted by these outages is likely to be much larger... Millions of Americans, however, will be contending with a heatwave that is blanketing much of the country, including in Philadelphia where the Salute to Independence Semiquincentennial Parade that had been set for Friday was canceled due to the dangerous heat wave, according to Philadelphia ABC station WPVI. Elsewhere, America's Independence Day Parade, which was scheduled for 10:30 a.m. on July 4 in downtown Washington, D.C. was canceled by organizers late Friday evening due to the extreme heat in the District of Columbia... Amtrak announced it will be canceling a number of trains due to heat-related conditions. The outages seemed to last throughout the day, with 790,103 household outages still in effect by 4:30 p.m. EST. Ironically, the power outages hit several American states that were among the country's original 13 freedom-declaring colonies, including New Jersey (143,072 outages), Pennsylvania (40,944 outages), and Virginia (27,392 outages). CNBC adds that America's largest power grid operator said Friday "it was under a federal alert to cut electricity consumption across its territory as it battled generator outages, massive overloading on its transmission lines and a surge in air conditioning use from prolonged sweltering heat." PJM said it told utilities to reduce electricity to customers who are under contract to reduce consumption during emergencies. PJM serves 67 million people in the Mid-Atlantic, South and Washington, D.C., area. Spot wholesale electricity prices in northern Virginia, home to the largest collection of data centers in the world, have surged beyond $2,000 per megawatt hour this week. That compares to about $40 per MWh when PJM is not in distress.

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Donald Trump shuttered the web site Climate.gov in 2025, cutting off public access to climate information from America's National Oceanic and Atmospheric Administration (NOAA). But "former members of the site's team have brought much of it back at a new domain," reports The Register: "Trusted climate information should not disappear when politics change," Climate.us managing director Rebecca Lindsey said of the new platform in a press release. Lindsey, who previously served as the Climate.gov program manager and lead editor, told The Register in an email that she and one of the web developers responsible for the site were the first to be caught up in government purges when DOGE swept through the department in late February 2025... Created in cooperation with sustainability nonprofit accelerator Multiplier, Climate.us aims to be an independent alternative to its old .gov, and many of the former NOAA crew behind the previous website have teamed up for the new initiative to "keep climate information accurate, accessible, scientifically rigorous, and useful for the people who rely on it." Climate.gov, which now redirects to a NOAA page about climate but which hosts none of the data the shuttered site used to contain, was taken offline in July 2025 following a Trump executive order prioritizing "gold standard science...." arguing that prior climate science models relied on worst-case scenarios, which somehow meant the public availability of 15 years of climate data and reporting ought to change... All of the content that was purged from the .gov is now back, along with blogs from experts, climate status reports, maps and data pathways, and national assessments of climate change as well. Lindsey told us that rapidly changing political winds have led her to believe that the government isn't the right place for that mission to continue, and that she would have concerns about returning the site to federal management if a future administration changed its position on climate change... Lindsey said that the Climate.us team will continue with the same mission it had before the Trump administration attempted to quash it: Getting climate science in front of the public in a manner that's understandable so they can make their own decisions about how to respond.

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There's a deadly, record-breaking heat wave spreading east across Europe, reports the Washington Post — and it's even worse than a dire earlier forecast: The forecast was recorded in 2014 as part of a campaign coordinated by the World Meteorological Organization (WMO) that invited about 60 presenters worldwide to imagine a weather report from the year 2050. In one clip, Ãvelyne Dhéliat from French television network TF1 presented a hypothetical scenario of high temperatures 36 years into the future — during a heat wave in a warmer climate in 2050... One of the maps that Dhéliat shared was lit up in shades of orange, filled with temperature predictions of 40 degrees Celsius (104 degrees Fahrenheit), reaching as high as 43 degrees Celsius (109.4 degrees Fahrenheit). But it turns out, it didn't take 36 years for those imagined temperatures to be reached — and even exceeded. The heat on Wednesday alone, when the temperature soared as high as 112.3 degrees Fahrenheit (44.3 degrees Celsius), exceeded the 2050 projections in 19 out of 34 locations across mainland France — far sooner than some may have expected. Some places surpassed those hypothetical future temperatures by more than 20 degrees Fahrenheit. It's part of a dramatic shift in heat wave frequency across the country. Half of the heat waves observed since 1947 have occurred since 2010. "By 2100, heat waves could last up to two months continuously," the country's weather agency, Météo-France, said this week. It was hotter in France on Wednesday than in Las Vegas and Phoenix and just two degrees Fahrenheit shy of what was observed in Death Valley, California. An estimated less than one percent of the planet was hotter than France's hottest place... [T]he heat dome, which will linger into early next week, is only part of the story. This type of extreme heat is becoming more common as the planet warms, especially in Europe. Climate scientist Robert Rohde said in a post explaining the heat wave's causes that France and Western Europe should expect many more heat waves like this over the coming decades. "This isn't a fluke, but simply part of the new normal," he said. Thanks to Slashdot reader fjo3 for sharing the news.

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fjo3 shares a report from the AFP: The latest heatwave sweeping across Europe is a stark reminder that it is the world's fastest-warming continent, stretching into an Arctic that is heating at an even greater pace. Britain, France, Italy and Spain have issued red alerts and health warnings for much of their territory this week as the region endures its second heat episode since May. Here is a look at why Europe is warming faster than elsewhere: The planet as a whole is around 1.4C warmer than in preindustrial times, defined as 1850-1900. By comparison, Europe is around 2.4C hotter than the preindustrial era, according to the EU's Copernicus Climate Change Service. The long-term rise in global average temperatures is mainly due to greenhouse gas emissions from burning oil, gas and coal, but it varies by regions due to a combination of factors. Land warms faster than the ocean as water can absorb more heat and cool through evaporation. Shifts in atmospheric circulation have driven more frequent and more intense heatwaves in the European summer, according to Copernicus. High-pressure systems, which bring settled weather and higher temperatures, have become more common in Europe, Copernicus director Carlo Buontempo said. [...] Another major reason is geography as Europe is connected to the Arctic, which is 3.2C warmer than in preindustrial times. The region's rising temperatures are partly due to a process known as the albedo feedback. Bright snow and ice reflect much of the sun's heat back into space, but as they melt they reveal darker, heat-absorbing surfaces such as land and the ocean. In other parts of Europe, areas where snow was very frequent in winter have seen this coverage shrink, exposing dark land. Stricter air quality regulations have reduced aerosol emissions since the 1980s. But tackling the pollutant had the side effect of contributing to global warming, as these tiny airborne particles have a cooling effect by reflecting sunlight and making clouds more reflective.

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An anonymous reader quotes a report from The Guardian: In May, the federal government announced without warning that it would take apart a network of ocean monitoring systems that it had spent over $350 million to build. No reason was given for the decision to shut down the Ocean Observatories Initiative (OOI), but suspicion immediately focused on the network's role in tracking climate change. But the OOI also provides data that's useful for weather forecasting and fisheries management, leading to widespread opposition. Today, it appears that the opposition has won, as the government will announce that it's reversing the decision. The big remaining question is how much damage the OOI took during the intervening month. [...] The OOI is a federally supported resource that provides ocean data for use by academic researchers, government planners, and private companies. It consists of arrays of monitoring systems in several locations in both the Atlantic and Pacific Oceans that can track things like currents, salinity, chemical levels, temperatures, and tectonic activity. (There are over 100 individual entries on the page that display the data gathered by the system.) Obviously, there are many potential uses of that data. The fact that it has been gathered continuously for a decade means it can help track changes in how carbon dioxide and heat enter the oceans. This is probably what made it a target for the climate change denialists who helped set the Trump administration's policy. Those policymakers are perfectly happy to annoy people with environmental concerns, but they apparently neglected to consider how upset everyone else would be about losing access to the other data. The ensuing public backlash led the Senate on Wednesday to unanimously agree with a measure that would block the government from taking down the OOI. Today's decision may indicate that the administration recognized it had gotten itself into a fight it knew it was losing. The National Science Foundation formally announced the decision, stating: "effective immediately, [it] will not proceed with further removal or descoping of equipment from the remaining arrays and will continue operations including planned maintenance." The agency added that it "appreciates the concerns raised by the range of stakeholders that have informed us they rely on data" from the OOI. The NSF also said it would "issue a Dear Colleague Letter to collect input from stakeholders and convene an expert panel to assess observational needs, evaluate available data sources, consider responses ... and help the agency identify a sustainable path for NSF's ocean observing systems."

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