Climate

The recent discovery of a new type of invasive mussel in the Sacramento-San Joaquin River Delta is raising concerns that the non-native species could cause major ecological harm and inflict …

“There is, even now, something of ill-omen amongst us. I mean the increasing disregard for law which pervades the country; the growing disposition to substitute the wild and furious passions, …

California regulators are poised to vote Friday on a measure intended to accelerate the state’s transition away from fossil fuels by imposing tougher carbon-reduction requirements for gasoline and diesel. California …

A particularly worrisome mussel species has entered North America for the first time through the Sacramento-San Joaquin River Delta — sparking what many are calling an immediate threat to California’s …

Donald Trump has repeatedly threatened to cut off federal disaster aid for California’s wildfires if he returns to the White House, most recently at a campaign rally in Coachella and …

San Francisco —  Jet airplanes spew enormous amounts of greenhouse gases and noxious chemicals, but the industry insists it wants to clean itself up. Some of the largest commercial airlines and …

Los Angeles County has filed suit against the world’s largest beverage companies — Coca-Cola and Pepsi — claiming the soda and drink makers lied to the public about the effectiveness …

I’m John Corrigan, Environment, Health and Science Deputy Editor for the L.A. Times; I’m filling in for Sammy Roth today. LIKOMA ISLAND, Malawi — Pricilla Chirwa and Pilirani Mwase sit …

A cold-loving fungus that has killed millions of bats across North America has significantly expanded its footprint in California, potentially taking hold from the northern to the southern tip of …

Oregon state and federal officials confirmed Wednesday that H5N1 bird flu was found in a pig living Crook County — the first such swine infection reported in the current outbreak. …