1+ hour, 25+ min ago  (374+ words) A massive marine heatwave warmed the eastern Pacific Ocean through much of 2025, but the wind-driven upwelling of cold, nutrient-rich water that drives the rich marine productivity of the West Coast kept the ecosystem healthy. The report assesses conditions and trends…...

1+ hour, 22+ min ago  (718+ words) Pierre Paquelier was thrilled the first time he saw chewed bark and other signs of beavers at Lone Tree Farm, his 80-acre horse property along the Tuolumne River near the Central Valley town of Waterford. He grew up in France…...

1+ hour, 45+ min ago  (402+ words) For the first time,scientistshavestatedwith statisticalconfidencethat global warming isaccelerating, not merely continuing at a steady pace.According toa new study,the past decade ranks as thefastest-warmingon record.At thecurrent pace, the authors wrote, Earth will exceed the limit of 1.5 degrees…...

1+ day, 1+ hour ago  (1682+ words) DAILY DIGEST, 3/9: What can engineers learn from Klamath River dam removals as trend ramps up?; Sierra snowpack running critically low and reservoir water levels may not last the summer; A look at current reservoir and snow conditions; A's are still…...

4+ day, 1+ hour ago  (533+ words) By Amy Quinton, UC Davis A major five-year study on California's Central Coast led by the U.S. Food and Drug Administration and the Western Center for Food Safety at the University of California, Davis, is helping scientists better understand how harmful…...

6+ day, 1+ hour ago  (239+ words) In addition, the unusual warmth could begin to set the stage for a repeat of last year's harmful algal bloom off Southern California. It hit unusually early in 2025 and killed hundreds of California sea lions, dolphins, and seabirds. Harmful algal…...

1+ week, 1+ hour ago  (289+ words) Atmospheric rivers can produce heavy precipitation and associated hazards worldwide. A new study identifies regions where these hazards have already, and will further, increase with global heating. By Thomas Stacker, EOS Atmospheric rivers (ARs) are coherent current structures in the…...

1+ week, 1+ hour ago  (120+ words) From the Department of Water Resources: DWR is leading the Georgiana Slough Effectiveness Study in partnership with UC Davis. This study involves the tagging and tracking of juvenile salmon in the Sacramento River to determine how well the non-physical barrier…...

1+ week, 1+ hour ago  (452+ words) By Alan Riquelmy, Courthouse News Service The San Francisco Baykeeper and others sued the federal government on Monday, accusing it of harming fish protected by the Endangered Species Act. The Center for Biological Diversity, Friends of the River and baykeeper…...

1+ week, 1+ hour ago  (805+ words) By Claire Carlson, Sierra Nevada Ally This story was produced by the Sierra Nevada Ally, a nonprofit, nonpartisan news outlet focused on civics, climate, and culture. For the most part, however, warming temperatures mean precipitation falls as rain instead of…...