"A sprawl of mobile home parks house 10,000 people in Southern California’s Coachella Valley, but their drinking water is chronically contaminated. Now some solutions are in sight."

"BIG SUR, Calif. — In a remote, rugged valley overlooking the Pacific Ocean, researchers closely monitor an endangered icon: the California condor."

"San Francisco and Oakland sued five major oil companies in the state courts on Wednesday in the latest attempts to hold fossil fuel producers accountable for the effects of climate change."

"A U.S. appeals court on Tuesday sided with the beverage industry, granting a preliminary injunction to block a San Francisco ordinance mandating health warnings for soda."

"Opening a new front in its broad legal battle against policies of President Trump, California filed a lawsuit Wednesday alleging that the administration has overstepped its powers in expediting construction of a wall at the U.S.-Mexico border."

"California sued the federal government Monday over the Trump administration’s decision to postpone indefinitely a decision by former President Barack Obama to dramatically increase the penalties for violating federal fuel economy standards."

"There was no shortage of red flags at Oroville Dam. It was a matter of knowing where to look."

The renaming of facilities at Yosemite National Park, because of a contract-related trademark dispute, "is an opportunity for the National Park Service to dump dozens of place names that are the linguistic equivalents of Confederate statues."

"Fire officials said on Monday they had effectively stopped the uncontrolled spread of the largest wildfire in Los Angeles history, with a little help from cooler weather, but were still working to contain it."

"Decades after declaring 1,2,3-TCP a carcinogen, California is finally regulating the toxin. But the cost of remediation will be high and communities are turning toward litigation to pay for water treatment."