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      Why a Memphis Community Is Fighting Elon Musk’s Supercomputer

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      Residents say Mr. Musk’s data center for artificial intelligence is compounding their pollution burden and adding stress on the local electrical grid.Elon Musk, the world’s richest man, is building what he says will be the world’s largest supercomputer. Its electricity needs will rival those of 100,000 homes.The supercomputer’s neighbors in southwest Memphis have a problem with that.The project, part of Mr. Musk’s xAI artificial intelligence business, sits in an old manufacturing plant on more than 550 acres. Before beginning operations there in July, xAI rolled in flatbed trucks loaded with almost 20 mobile power plants, fueled by natural gas, to help meet its electricity demands.Residents of the heavily industrial community — already home to an oil refinery, a steel mill and chemical plants — see no upside. They contend that Mr. Musk’s project has made pollution worse in an area already enveloped in smog.“We’re getting more and more days a year where it is unhealthy for us to go outside,” said KeShaun Pearson, president of Memphis Community Against Pollution and a lifelong resident of the area near the xAI site.The xAI supercomputer center in Memphis is being built at the site of a former appliance factory.Whitten Sabbatini for The New York TimesThe center is to be used to train artificial intelligence models on thousands of powerful computer servers.Whitten Sabbatini for The New York TimesSo far, xAI is using the Memphis facility to develop its artificial intelligence models on a network of thousands of high-powered computer servers. Some of its models are trained on data from Mr. Musk’s social media platform, X.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber? Log in.Want all of The Times? Subscribe. More

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      How a Tiny Panel, Up for Election, Could Steer Arizona Away From Clean Power

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      The vote, in a sunny state with huge solar potential, reflects a growing nationwide fight over America’s energy transition.As Arizona voters go the polls, they have more control over their state’s power plants and climate policies than they might realize.This year three of the five seats are up for grabs on the Arizona Corporation Commission, which regulates electric utilities. The commission has authority over how electricity is generated, among other things, and what customers pay.In recent years, it has taken steps toward rolling back a clean-energy mandate passed by a previous Republican-led board. It has also made it harder to build community solar in a state renowned for its sunniness, its critics say, and easier to build new fossil-fuel-burning power plants.These boards exist in states nationwide, and while most are appointed, similarly contentious races playing out in states like Louisiana and Montana, where they’re debating the future of coal power, which is particularly dirty, and what role natural gas, another fossil fuel, should have.“It’s a fourth branch of government that nobody knows about who’s in your pocket every day,” said Robert Burns, a Republican who served on Arizona’s commission for eight years.Starting two decades ago, the Republican-controlled commission had encouraged a transition to renewable energy based on simple economics: Renewables were getting cheaper than fossil fuels. It initially required utilities it regulates to become 15-percent renewable by 2025 and later, during Mr. Burns’s tenure, he sought to eliminate greenhouse-gas emissions from power plants by 2050.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber? Log in.Want all of The Times? Subscribe. More

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      U.N. Report on Climate Goals Says Countries Have Made No Progress

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      An annual assessment by the world body tracks the gulf between what countries have vowed to do and what they’ve actually achieved.One year after world leaders made a landmark promise to move away from fossil fuels, countries have essentially made no progress in cutting emissions and tackling global warming, according to a United Nations report issued on Thursday.Global greenhouse gas emissions soared to a record 57 gigatons last year and are not on track to decline much, if at all, this decade, the report found. Collectively, nations have been so slow to curtail their use of oil, gas and coal that it now looks unlikely that countries will be able to limit global warming to the levels they agreed to under the 2015 Paris climate agreement.“Another year passed without action means we’re worse off,” said Anne Olhoff, a climate policy expert based in Denmark and a co-author of the assessment, known as the Emissions Gap Report.The report comes a month before diplomats from around the world are scheduled to meet in Baku, Azerbaijan, for annual United Nations climate talks, where countries will discuss how they might step up efforts to address global warming.Lately, those efforts have faced huge obstacles.Even though renewable energy sources like wind and solar are growing rapidly around the world, demand for electricity has been rising even faster, which means countries are still burning more fossil fuels each year. Geopolitical conflicts, from the U.S.-China rivalry to war in places like Ukraine and Gaza, have made international cooperation on climate change harder. And rich countries have failed to keep their financial promises to help poor countries shift away from oil, gas and coal.At last year’s climate talks in Dubai, United Arab Emirates, representatives from nearly every nation approved a pact that called for “transitioning away from fossil fuels” and accelerating climate action this decade. But the agreement was vague on how to do so and on which countries should do what, and so far there has been little follow-through.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber? Log in.Want all of The Times? Subscribe. More

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      Ruth Glacier in Alaska Hides America’s Deepest Gorge

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      As his bush plane circled the craggy peaks of the Alaska Range, the explorer Bradford Washburn peered down and had a burning thought.Coursing down the southern slopes of Denali and Mount Silverthrone were the accumulated snows of thousands of winters, compacted under their own weight into colossal rivers of ice that filled the valleys for miles in every direction. At one particular spot in the white wilderness, Washburn noticed from above, all this glacial mass was somehow squeezing through a granite-walled corridor just a mile wide.Washburn became convinced, he wrote, that beneath the ice lay a secret: The corridor was deep. Deeper, perhaps, than any other gorge on the continent, and maybe even the planet.That was 1937. Nearly 90 years later, a team of scientists set off into the windswept mountains to measure the glacier with snowmobiles and ice-penetrating radar. It wasn’t easy: The Great North does not surrender its mysteries readily. The researchers almost didn’t think they’d found anything of interest.The Ruth Glacier originates beneath the summit of Denali and flows through deep granite valleys.Now, thanks to some clever analysis, and a bit of luck, they have put forth the most conclusive evidence yet that Washburn was right — that the area could be the deepest gorge in North America.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber? Log in.Want all of The Times? Subscribe. More

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      Britain Shuts Down Last Coal Plant, ‘Turning Its Back on Coal Forever’

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      The Ratcliffe-on-Soar plant was the last surviving coal-burning power station in a country that birthed the Industrial Revolution and fed it with coal.Britain, the nation that launched a global addiction to coal 150 years ago, is shutting down its last coal-burning power station on Monday.That makes Britain first among the world’s major, industrialized economies to wean itself off coal — all the more symbolic because it was also the first to burn tremendous amounts of it to fuel the Industrial Revolution, inspiring the rest of the world to follow suit.“The birthplace of coal power is turning its back on coal forever,” said Matt Webb, an associate director at the London-based research and advocacy group, E3G.On Monday, in the middle of England, the end of Britain’s coal era will be marked by the closure of the 2,000-megawatt Ratcliffe-on-Soar facility. Uniper, the power company that operated the plant, said the 750-acre site would be converted to a “low-carbon energy hub.”The closure comes 142 years after the world’s first coal-burning power plant began producing electricity at the Holborn Viaduct in London in 1882 and, in turn, accelerating Britain’s rise as a major industrial and imperial power.Coal is the dirtiest fossil fuel. When burned, it produces greenhouse gases that have heated the Earth’s atmosphere and supersized heat waves and storms. While it was long the cheapest and most abundant source of power in many countries, including Britain, it has been replaced in recent decades by gas, nuclear power and most recently, renewables, like wind and solar.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber? Log in.Want all of The Times? Subscribe. More

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      Across the World, Diplomats Gird for a Trump Assault on Climate Action

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      Some leaders insist that the global clean energy transition will happen with or without the United States.Climate negotiators from Europe, Latin America and some island nations are bracing for the potential return to the world stage of Donald J. Trump, who withdrew the United States from the fight against global warming during his first term.Nations will press forward without the United States if they must, according to climate negotiators who gathered in New York last week during the United Nations General Assembly. But the first Trump presidency was a setback in the climate fight, and a repeat would slow things down at a critical point when scientists say efforts need to speed up.“I don’t want this to happen, of course,” said Laurence Tubiana, who served as France’s climate ambassador during the creation of the 2015 Paris agreement, referring to a potential Trump victory. “But I think there will be a sentiment that we have to double down on the Paris agreement framework. I think everybody’s preparing for that.”The night before Donald J. Trump won the presidency in 2016, an adviser to developing nations in global climate negotiations declared, “No one believes Trump can win, so no real Plan B here!”After he beat Hillary Clinton to win the White House, Mr. Trump kept the world guessing for months about whether the United States would remain a global partner on climate change. Many leaders reserved early judgment, hopeful that people like Mr. Trump’s daughter, Ivanka, would convince him to stay in. They didn’t.Mr. Trump, who has dismissed global warming as a “hoax,” made the United States the first and only country to withdraw from the 2015 Paris agreement that calls on countries to cut the pollution from oil, gas and coal that is dangerously heating the planet. The Trump administration also worked with major oil producers like Saudi Arabia to weaken global pledges around fossil fuels. President Biden rejoined the Paris agreement on his first day in office.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber? Log in.Want all of The Times? Subscribe. More

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      In Silicon Valley, a Rogue Plan to Alter the Climate

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      SARATOGA, Calif. — A silver Winnebago pulled up to a self storage warehouse on the outskirts of a Silicon Valley suburb and three renegade climate entrepreneurs piled out, all mohawks, mustaches and camouflage shorts.Working swiftly, the men unlocked a storage unit crammed with drones and canisters of pressurized gas. Using a dolly, they wheeled out four tanks containing sulfur dioxide and helium, and stacked them on the floor of the camper van. Then, almost as quickly as they arrived, they were on the road, headed for the golden hills near the Pacific Ocean.With their jury-rigged equipment and the confidence that comes with having raised more than $1 million in venture capital, they were executing a plan to release pollutants into the sky, all in the name of combating global warming.“We’re stealth,” said Luke Iseman, one of the co-founders of Make Sunsets, delighting in their anonymity as he rode in the back. “This looks like just another R.V.”Make Sunsets is one of the most unusual start-ups in a region brimming with wild ideas. Iseman, 41, and his co-founder, Andrew Song, 38, claim that by releasing sulfur dioxide into the stratosphere, they can reflect some of the sun’s energy back into space, thereby cooling the planet.It’s a gutsy undertaking, yet it has at least a partial grounding in science. For 50 years, climate scientists have suggested that releasing aerosols into the stratosphere could act as a buffer and reduce the heat from the sun. Volcanic eruptions have temporarily cooled the planet this way in the past, but no one has attempted to intentionally replicate the effect at scale.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber? Log in.Want all of The Times? Subscribe. More

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      Study Finds Climate Change Doubled Likelihood of Recent European Floods

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      Storm Boris dumped record amounts of rain over Central and Eastern Europe this month. A new study found climate change made the deluge more likely.Europe faced catastrophic floodwaters that affected two million people earlier this month and transformed neighborhoods and urban centers into muddy rivers. At least 24 people died, and some were reported missing.That lethal deluge, known as Storm Boris, was made twice as likely by human-induced climate change, according to a new analysis by World Weather Attribution, an international group of scientists and meteorologists who study the role of climate change in extreme weather events.The storm dropped 7 to 20 percent more rain than a similar one would have in a preindustrial world, before humans started burning fossil fuels and releasing greenhouse gases that have increased global temperatures.The world is heating up quickly: 2023 was the warmest year on record, and 2024 could still surpass it, according to the National Oceanic and Atmospheric Administration. In the simplest terms, warmer air holds more moisture that contributes to more intense and frequent rainfall.More than a half-dozen countries in Europe — including Poland, the Czech Republic, Austria, Romania, Hungary, Germany and Slovakia — saw record-breaking amounts of rain between Sept. 12 and Sept 15. The slow-moving, low-pressure system dumped up to five times September’s average rainfall over those four days. The floodwaters led to power cuts and the closure of schools, factories and hospitals.But it was only one of many flooding events that have wreaked havoc across the world in recent months.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber? Log in.Want all of The Times? Subscribe. More