"Forest pathologist Martin MacKenzie strode forward on a narrow path through California’s mythic bristlecone pine forest in the White Mountains near the Nevada border, methodically scanning gnarled limbs for the invaders that threaten the lives of some of the world’s oldest trees."

"As California endures water restrictions due to widespread drought, a proposed $2.5-billion reservoir expansion project in Santa Clara County promises to increase the amount of freshwater for more than a million people."

"A bacteria outbreak in two state hatcheries is forcing the California Department of Fish and Wildlife to euthanize about 350,000 rainbow trout, which could affect fishing stock in some state waterways this summer."

"In a broad victory for government transparency, an appeals court has ruled that the California Public Utilities Commission must comply with a state law requiring all agencies to promptly release information to the public."

"Southern California is facing a potentially treacherous wildfire season this year, as climate change, drought and extreme heat conspire to bake vegetation and prime the landscape for burning, officials say."

"Extreme drought conditions prompted the open-ended closure of a popular hiking trail in Joshua Tree National Park to ensure water access for bighorn sheep."

"Law professors say much of the buzz around a California court’s finding that bees meet the definition of fish missed the mark, and that the decision isn’t as unusual as it seems."

"In a long series of court proceedings, permits allowing the fracking and acidizing of oil wells in federal waters off the coast of California were prohibited by the Ninth Circuit Court of Appeals today [Friday].