L.A. Times - Environment

For years, he'd been a classroom science teacher in suburban San Diego County. Now he hopes to meaningfully contribute to the regrowth of oaks in burned Altadena.

Senate Bill 954 would have rolled back parts of last year's controversial overhaul of CEQA that allowed for advanced manufacturing facilities to be sited in communities without environmental review.

A question has bedeviled a wealthy Lake Tahoe enclave for years: Who is poisoning the towering trees that stand sentry on the lake's North Shore?

Almost two years after a massive battery fire south of Santa Cruz displaced 1,200 people and smoldered for days, the same facility is burning again.

Scientists are finding that snowfall is more connected to water underground than we knew. Using satellite data, they found groundwater levels actually rise during big snow years, in contrast to most years, when it continues to fall.

The thousands of square miles of mountain watershed around L.A. -- the San Gabriels and the San Bernardinos -- are as steep as roller coasters, and the rain funnels off them in tumults.

More than 40 cormorants, black pelican-like seabirds, washed ashore at Venice Beach this weekend. The cause is a mystery.

California Gov. Gavin Newsom has signed legislation to create new standards to test and remediate homes damaged by wildfire smoke, and to require insurance companies to pay for the associated costs.

The Trump administration is rolling back the majority of Biden-era limits on greenhouse gas emissions in an effort to remove "red tape" that drives up energy costs, agency officials said.

An agreement signed Friday formalizes seven tribes as co-managers of the Clear Lake watershed. Mercury contamination, toxic algal blooms and invasive fishes have threatened a rare and revered local fish.

California has quietly, but dramatically, increased the resiliency of its electrical grid through a significant expansion in battery energy storage.

Another El Niño-influenced phenomenon — a "coastally trapped Kelvin wave" — is moving up the coast of Mexico and will soon hit the U.S. West Coast.