Trump administration sues California over the state’s nation-leading vehicle-emission rules
SACRAMENTO, Calif. – The Trump administration ramped up a battle with California over the state’s nation-leading vehicle-emission standards…
Eaton fire sent a pollution wave across Los Angeles
The 2025 Eaton fire’s smoke did more than darken the sky: It generated a carbon monoxide and particulate…
CA carbon emission rules prompt new war of words
By Dan Walters, CalMatters Gas prices on display in Sacramento on March 8, 2026. Gas prices have recently…
New report has solutions for Tijuana River sewage pollution
Why this matters Pollution in the Tijuana River has impacted communities on both sides of the U.S.-Mexico border…
San Diego chamber releases binational roadmap for Tijuana River sewage crisis – San Diego Union-Tribune
The San Diego Regional Chamber of Commerce released a comprehensive binational report Wednesday outlining a five-pillar strategy to…
Data centers can be models of affordable, clean energy
By Sam Uden and Matthew Freedman, Special for CalMatters This commentary was originally published by CalMatters. Sign up…
Traditional Pacific navigators bring the intricate science of wayfinding to the Bay Area
Sophia Perez thought her 2018 visit to Saipan, in the Pacific Ocean’s Northern Mariana Islands, would only last…
Coldest Marches in California since 1895 | State
VOJTa Herout // ShutterstockColdest Marches in California since 1895 Stacker compiled a ranking of the coldest Marches in…
California high school students develop AI wildfire suppression system for global competition
SAN JOSE, Calif. — As we gear up for the start of wildfire season, a South Bay high…
First confirmed cases of bird flu in California elephant seals stoke fear as virus surges worldwide
This article originally appeared in Inside Climate News, a nonprofit, nonpartisan news organization that covers climate, energy and…
‘Forever chemicals’ in Sweetwater Authority’s water: what to know
Stay informed on Sweetwater Authority’s rates and PFAS response. Back our reporting. Give $10 They’re toxic, slow to…
Oakland has an unlikely ally in push for environmental justice: the A’s
OAKLAND — Long after leaving Oakland, the A’s are still fighting in court and the California Legislature to…