"With aquifers nationwide in dangerous decline, one part of California has tried essentially taxing groundwater. New research shows it’s working."

"Scores of California farmworkers are dying in the heat in regions with chronically bad air, even in a state with one of the toughest heat standards in the nation."

"An ongoing CalMatters investigation has shown how California companies and governments avoid the Golden State’s strict environmental regulations by shipping toxic waste across state borders. New reporting shows how California exports the risk to Mexico."

"When a toilet is flushed in California, the water can end up in a lot of places: An ice skating rink near Disneyland, ski slopes around Lake Tahoe, farmland in the Central Valley. And — coming soon — kitchen faucets."

"Maya Wiliams, 17, already does what she can to tackle climate change. She’s a vegan. She elected not to get her driver’s license, and she turns down trips if they involve airplanes."

"California is set to adopt regulations that will allow for sewage to be extensively treated, transformed into pure drinking water and delivered directly to people’s taps."

"A major restoration effort by a coalition of Tribes and government agencies could help imperiled fish and other animals on the Trinity River."

"Scientists with NASA’s Jet Propulsion Laboratory were flying a plane equipped with a visible-infrared imaging spectrometer over an oil field in California’s San Joaquin Valley when they made a worrisome discovery. Images produced by the device revealed a large plume of methane lingering in the air."

"The story of California’s water wars begins, as so many stories do in the Golden State, with gold."