"The prickly pear cactus may not sound like a trendy cash crop, but it could become a phenomenon among farmers on the arid west side of the San Joaquin Valley."

"California approved aggressive new rules on Friday to reduce greenhouse gas emissions by requiring automakers to put many more electric and hybrid vehicles on the Golden State's roads by 2025. The regulations were approved unanimously by nine members of the state's powerful air-quality regulator, the California Air Resources Board, at a meeting in Los Angeles."

"They are expected to cut greenhouse gas emissions by 34 percent and smog and soot pollutants by 75 percent by 2025, in part by putting 1.4 million electric, plug-in and hydrogen vehicles on the state's roads.

"The dispute centered on a risky method of extraction. California's governor has sued oil companies throughout his career, but he now talks of tossing cumbersome regulations to revive the economy."

"In a move that could reshape the American automobile industry, California regulators Thursday are expected to approve sweeping new rules requiring that 15 percent of new cars sold in California by 2025 run on electricity, hydrogen or other systems producing little or no smog."

"The regulations by the California Air Resources Board, dubbed the 'advanced clean car rules,' would start in 2018, ramping up each year and ultimately resulting in 1.4 million 'zero emission' vehicles on California roads by 2025. Today there are only about 10,000 such vehicles in the state. ...

"Since falling to a low of 100 in 1999, the Catalina Island fox has rebounded to a number — 1,542 — above its previous level, thanks to conservationists' efforts."

"On a bus tour, California Coastal Commission members strive to find out what's keeping the public from some of the state's most desirable beaches. One thing they didn't see: 20 pathways that were set aside on paper but have yet to be built."

"The lawsuit over California's approval of a controversial pesticide may hinge on a seemingly straightforward question: Did regulators ever ask themselves what would happen if they didn't approve methyl iodide?"

"FRESNO, Calif. — This is the time of year when residents who often live with the nation's worst pollution often can draw a breath of fresh air. But this winter has not been kind to people who want to play outside in California's Central Valley."

"The longtime practice of dumping huge rocks and chunks of concrete along the coastline to stop erosion is coming under fire from those who favor letting the shoreline retreat naturally. San Francisco's efforts to protect Ocean Beach is the latest battleground."

"Something that has been missing from San Francisco Bay since World War II appears to be making a comeback: Harbor porpoises are showing up in growing numbers, and researchers are trying to understand why they're returning."