A major spring snowstorm briefly closed a key Northern California interstate and extended the ski season at Mammoth Mountain. More than 3.5 feet of snow fell in the eastern Sierra Nevada over the weekend.

Environmentalists question how regulators will keep tabs on oil well incidents after Gov. Gavin Newsom amended state law to increase production following a three-year moratorium on new drilling permits.

Friant Water Authority announced conclusions to an array of lawsuits that had been a burr for the agency and its members after a lengthy closed session Thursday, March 26.

Over a dozen farmworkers and UC Merced students protested the idea that machines could replace human workers.

A record-baking heat wave is scalding California, with major consequences for the state’s most important reservoir: its snowpack. Providing about a third of the state’s water supply, the Sierra Nevada snowpack is a vital source of spring and summer runoff that refills reservoirs when the state needs the water most.

California built a first-in-the-nation system to police refinery profits during price spikes. Regulators delayed it for five years.

Visitors are flocking to Death Valley National Park in California and Nevada to take in a rare phenomenon known as a superbloom.

Some landowners in Tulare and Kings counties are facing a mandatory well registration deadline of July 1, 2026.

A 2015 law required the state Department of Toxic Substances Control to overhaul its permitting process to consider how multiple sources of pollution impacts health. Advocates now say the overdue rules aren’t protective enough.

Blending green hydrogen with natural gas is seen by some as key to achieving California’s clean energy goals.