"Despite heavy pushback from the state's livestock producers, California Gov. Jerry Brown last month signed a law aimed at cutting methane emissions from cattle operations, the largest source of heat-trapping methane in the country's biggest dairy-producing state."

"If you live in the San Francisco Bay Area, you may have seen ads urging you to vote 'no' on a grocery tax. 'Don't Tax Our Groceries' is the tagline of the $9.5 million campaign, which is funded by the American Beverage Association. ... But here's the thing. There's no grocery tax on the ballot."

"Lawmakers have proposed pesticide-free zones around schools and daycare centers. Environmental and community activists say they fall short, given pesticides’ reach and persistence; pesticide manufacturers say they're unwarranted."

"California should leave more water in the state's most vital river delta to save crashing populations of native fish, state regulators said Wednesday in findings that could cut the amounts that cities and farms can take from the Sacramento and San Joaquin waterways."

"The La Jolla of Luiseño Indians have seen their wells shrink dramatically because of California’s ongoing drought. Robin Cabrera explains how a federal grant – and help from other tribes – could lead to a solution."

"Evidence of what scientists are calling the planet’s Sixth Mass Extinction is appearing in San Francisco Bay and its estuary, the largest on the Pacific Coast of North and South America, according to a major new study."

"California will tighten rules on how much farmers can use a common pesticide listed by the nation's most productive agricultural state as a chemical known to cause cancer, regulators said Thursday."

"WEED, Calif. — The water that gurgles from a spring on the edge of this Northern California logging town is so pristine that for more than a century it has been piped directly to the wooden homes spread across hills and gullies."

"Southern California residents should remain on heightened alert until Tuesday for the increased possibility of a major earthquake, officials said."

"The head of Yosemite National Park will retire after employees complained that he created a hostile workplace by allowing bullying, harassment and other misconduct — allegations that have been made in other national parks, officials said Thursday."