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Ancient ice core could help explain mysterious shift in Earth’s ice ages

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By Elise Cutts , Science.  Excerpt: VIENNA— Scientists have drilled a record-setting ice core stretching back 1.2 million years. The ancient air it contains reveals sharp swings in carbon dioxide that could help explain a mysterious shift in the rhythm of Earth’s ice ages. The core...is the culmination of 10 years of work and 2.8 kilometers of drilling in Antarctica by the European project Beyond EPICA. It provides the first direct, detailed look at how greenhouse gases varied during a critical climatic window between 800,000 and 1.25 million years ago, when Earth’s ice ages shifted from 40,000-year-long cycles to longer, more intense sequences of 100,000 years. ...The extended window has brought the mysterious Mid-Pleistocene Transition (MPT) into focus. Beginning about 2.6 million years ago, the climate swung in and out of relatively mild ice ages every 40,000 years, driven by wobbles in Earth’s orbit. But then, about 1.25 million years ago, something began to slide Earth to...
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The future of plant extinction

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By Rosa A. Scherson  and  Federico Luebert , Science.  Excerpt: Climate change is reshaping the environmental conditions that plants must face and accelerating their extinction. Estimating how endangered plants are is important to inform conservation decisions. However, only 18% of plants are included in the International Union for Conservation of Nature (IUCN) Red List of Threatened Species, which provides global assessments of the risk of extinction for 76,864 plant species ( 2 ). ...Although Forest  et al . and Wang  et al . used different scales of time and space and studied different (but largely overlapping) groups of plants, both studies revealed that plant extinctions do not occur randomly across geographical areas. For example, Forest  et al . reported that angiosperm [flowering] species at high extinction risk are concentrated in tropical regions and islands, such as Madagascar, Borneo, and Ecuador. Furthermore, Wang  et al. ...
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A 481-meter-high landslide-tsunami in a cruise ship–frequented Alaska fjord

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By Dan H. Shugar , et al, Science.  Abstract: Early in the morning of 10 August 2025, a >64 × 10 6  m 3  landslide struck Tracy Arm fjord in Alaska. The landslide was preconditioned by glacial retreat caused by climate change. The resulting 481 m runup megatsunami followed an initial 100-m-high breaking wave traveling >70 m s −1 . The landslide was preceded by several days of microseismicity, which increased in rate and magnitude until ~1 hour before failure. The landslide produced globally observed long-period seismic waves equivalent in size to a M5.4 earthquake. A long-period (~66 s) global seismic signal, produced by a landslide-induced seiche trapped within the fjord, persisted for up to 36 hours, the second time a days-long seiche has been thus observed. With fjord regions increasingly visited by cruise ships, and climate change making similar events more likely, this unanticipated, near-miss event highlights the growing risk from landslides and tsun...
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Pushed by Trump policies, top U.S. battery scientist is moving to Singapore

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By Jeffrey Mervis , Science.  Excerpt: Shirley Meng grew up in China and earned her degrees in Singapore, but the United States is where she built her career trying to make better and cheaper batteries for a power-hungry world. After 2 decades here, the University of Chicago (UChicago) materials scientist, who also heads a Department of Energy (DOE) research hub, is now heading back to Asia.On 1 July, Meng will become vice president for innovation and global affairs at Singapore’s Nanyang Technological University (NTU), her undergraduate alma mater and a growing rese arch powerhouse. Only 35 years old, NTU was ranked 12th this year in  one global assessment of research universities —one rung above UChicago. Meng took the job because she thinks the U.S. has turned away from a commitment to decarbonize its economy. She’s leaving with mixed emotions—and the hope that the political environment for more sustainable energy sources will improve once President Donald Trump leaves offi...
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As Energy, War and Climate Collide, a Conference in Colombia Charts a Path Beyond Fossil Fuels

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By Bob Berwyn , Inside Climate News.  Excerpt: While some major fossil fuel producers keep pushing for expanded oil and gas use, which is  linked  to warfare, economic shocks and ecological damage, more than 50 countries at the first  Conference on Transitioning Away From Fossil Fuels  began developing plans to shift toward renewable energy systems designed for stability and abundance rather than scarcity and conflict. ...Participants and observers  described  the meeting as a space where fossil fuels themselves, and not just their emissions, were discussed as the root cause of overlapping crises, from conflict and displacement to economic instability. At past UNFCCC climate talks, those connections were often downplayed, especially in official documents....  Full article at https://insideclimatenews.org/news/01052026/colombia-climate-summit-charts-path-beyond-fossil-fuels . 
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Solar ranch in Tennessee aims to prove grazing cattle under the panels is a farmland win-win

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By TAMMY WEBBER  and  JOSHUA A. BICKEL , Associated Press.  Excerpt: CHRISTIANA, Tenn. (AP) — From a distance, the small solar farm in central Tennessee looks like others that now dot rural America, with row upon row of black panels absorbing the sun’s rays to generate electricity. But beneath these panels is lush pasture instead of gravel, enjoyed by a small herd of cattle that spends its days munching grass and resting in the shade. Silicon Ranch, which owns the 40-acre farm in Christiana, outside of Nashville, believes cattle-grazing is the next frontier in so-called agrivoltaics, which mostly has involved growing crops or grazing sheep beneath the panels. The solar company debuted the project this week and will spend the next year working to demonstrate to farmers that much larger cattle also can thrive at solar sites. If successful, advocates say, that could jump-start new projects to meet the soaring electricity demand driven by rapidly expanding data centers — with...
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Global Deforestation Slows, Analysis Finds. But Fires Remain a Major Threat

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By Sachi Kitajima Mulkey  and  Harry Stevens , The New York Times.  Excerpt: In 2025, the world razed less forest than any other year in the last decade. The bad news: global warming is making wildfires more frequent and intense....  Full article at https://www.nytimes.com/2026/04/29/climate/wri-report-forest-loss.html . 
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