Brett Poulin Content / Brett Poulin Content for 51ԹϺ Davis en 2025 Arctic Report Card Released /climate/blog/2025-arctic-report-card-released <p><span>Bright orange rivers, a greening tundra, the “Atlantification” of the Arctic and record-breaking temperatures on both land and sea are among the emerging concerns highlighted in the </span><a href="https://arctic.noaa.gov/Report-Card/Report-Card-2025/"><span>2025 Arctic Report Card</span></a><span> from the National Oceanic and Atmospheric Administration (NOAA.) Now in its 20th year, the peer-reviewed report includes chapters by 112 authors from 13 countries, each dedicated to monitoring changes in the Arctic.&nbsp;</span></p> December 16, 2025 - 2:00pm Katherine E Kerlin /climate/blog/2025-arctic-report-card-released Disposable E-Cigarettes More Toxic Than Traditional Cigarettes /news/disposable-e-cigarettes-more-toxic-traditional-cigarettes <p>They may look like travel shampoo bottles and smell like bubblegum, but after a few hundred puffs, some disposable, electronic cigarettes and vape pods release higher amounts of toxic metals than older e-cigarettes and traditional cigarettes, according to a study from the University of California, Davis. For example, one of the disposable e-cigarettes studied released more lead during a day’s use than nearly 20 packs of traditional cigarettes.</p> June 25, 2025 - 5:00am Katherine E Kerlin /news/disposable-e-cigarettes-more-toxic-traditional-cigarettes Sulfur Runoff Amplifies Mercury Concentrations in Florida Everglades /climate/news/agricultural-use-sulfur-amplifies-mercury-concentrations-florida-everglades Sulfur from sugarcane crops is flowing into wetlands in the Florida Everglades, creating toxic methylmercury, which accumulates in fish, a 51ԹϺ Davis study finds. May 08, 2025 - 10:26am Katherine E Kerlin /climate/news/agricultural-use-sulfur-amplifies-mercury-concentrations-florida-everglades Alaska’s Rusting Waters: Pristine Rivers and Streams Turning Orange /climate/news/alaskas-rusting-waters-pristine-rivers-and-streams-turning-orange Thawing permafrost in Alaska could be exposing minerals to weathering, which is staining rivers orange. 51ԹϺ Davis and partners are investigating. May 20, 2024 - 11:54am Emily C Dooley /climate/news/alaskas-rusting-waters-pristine-rivers-and-streams-turning-orange