Coal power generation fell in China and India for the first time since the 1970s last year, in a "historic" moment that could bring a decline in global emissions, according to analysis. From a report: The simultaneous fall in coal-powered electricity in the world's biggest coal-consuming countries had not happened since 1973, according to analysts at the Centre for Research on Energy and Clean Air, and was driven by a record roll-out of clean energy projects. The research, commissioned by the climate news website Carbon Brief, found that electricity generated by coal plants fell by 1.6% in China and by 3% in India last year, after the boom in clean energy across both countries was more than enough to meet their rising demand for energy. China added more than 300GW of solar power and 100GW of wind power last year -- together, more than five times the UK's total existing power generation capacity -- which are both "clear new records for China and, therefore, for any country ever," the report said. India added 35GW of solar, 6GW of wind and 3.5GW of hydropower last year, according to the analysis.

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The world's oceans absorbed yet another record-breaking amount of heat in 2025, continuing an almost unbroken streak of annual records since the start of the millennium and fueling increasingly extreme weather events around the globe. More than 90% of the heat trapped by humanity's carbon emissions ends up in the oceans, making ocean heat content one of the clearest indicators of the climate crisis's trajectory. The analysis, published in the journal Advances in Atmospheric Sciences, drew on temperature data collected across the oceans and collated by three independent research teams. The measurements cover the top 2,000 meters of ocean depth, where most heat absorption occurs. The amount of heat absorbed is equivalent to more than 200 times the total electricity used by humans worldwide. This extra thermal energy intensifies hurricanes and typhoons, produces heavier rainfall and greater flooding, and results in longer marine heatwaves that decimate ocean life. The oceans are likely at their hottest in at least 1,000 years and heating faster than at any point in the past 2,000 years.

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Germany's Harz mountains, once known for their verdant spruce forests, have become a graveyard of skeletal trunks after a bark beetle outbreak ravaged the region starting in 2018 -- an infestation made possible by successive droughts and heatwaves that fatally weakened the trees. Between 2018 and 2021, Germany lost half a million hectares of forest, nearly 5% of the country's total. Since 2010, EU land carbon absorption has declined by a third, and Germany is now almost certain to miss its carbon sequestration targets, according to Prof Matthias Dieter, head of the Thunen Institute of Forestry. "You cannot force the forest to grow -- we cannot command how much their contribution should be towards our climate targets," he said. Foresters in the Harz are responding by abandoning monoculture plantations in favor of mixed-species approaches. Pockets of beech, firs, and sycamore are now being planted around surviving spruce. A 2018 study in Nature found tree diversity was the best protection against drought die-offs, and more recent PNAS research found that species richness protected tree growth during prolonged drought seasons. The approach marks a shift from Germany's pioneering modern forestry methods, which relied on single-species plantations now proved vulnerable to climate-driven disasters.

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Climate-heating emissions from aviation could be slashed in half -- without reducing passenger journeys -- by getting rid of premium seats, ensuring flights are near full and using the most efficient aircraft, according to analysis. The Guardian: These efficiency measures could be far more effective in tackling the fast-growing carbon footprint of flying than pledges to use "sustainable" fuels or controversial carbon offsets, the researchers said. They believe their study, which analysed more than 27m commercial flights out of approximately 35m in 2023, is the first to assess the variation in operational efficiency of flights across the globe. The study, led by Prof Stefan Gossling at Sweden's Linnaeus University, examined flights between 26,000 city pairs carrying 3.5 billion passengers across 6.8 trillion kilometers. First and business class passengers are responsible for more than three times the emissions of economy travelers, and up to 13 times more in the most spacious premium cabins. The average seat occupancy across all flights in 2023 was almost 80%. US airports accounted for a quarter of all aviation emissions and ran 14% more polluting than the global average. Atlanta and New York ranked among the least efficient airports overall, nearly 50% worse than top performers like Abu Dhabi and Madrid.

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"The ancient evolution of fish mouths could help solve a modern source of plastic pollution," writes ScienceAlert. "Inspired by these natural filtration systems, scientists in Germany have invented a way to remove 99 percent of plastic particles from water. It's based on how some fish filter-feed to eat microscopic prey." The research team has already filed a patent in Germany, and in the future, they hope their creation will help curb a ubiquitous form of plastic pollution that many are unaware of. Every time a load of laundry is done, millions of microplastics are washed from the fibers of our clothes into local waterways. By some estimates, up to 90 percent of plastic in 'sewage sludge' comes from washing machines. This material is then often used in agriculture as soil or fertilizer, possibly exposing those who eat the resulting crops to these pollutants... Unlike other plastic filtration systems on the market, this one reduces clogging by 85 percent.

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