California

"Warmer temperatures may be catalyzing a climb in vaporized chemical contaminants across Los Angeles, a new study has found."

"A number of wildfires in New Mexico and California have spawned evacuations, with intense blazes developing quickly and making damage assessments difficult for local officials."

"Several dozen dams throughout California could store up to 107 billion more gallons of water if they underwent repairs to fix safety problems. But facing a staggering state deficit, Gov. Gavin Newsom has proposed cutting funding for a dam repair grant program in half this year, while state legislators want the $50 million restored."

"Strong winds pushed flames through dry brush in mountains along Interstate 5 north of Los Angeles on Sunday, and officials warned residents in the wildfire’s path to be prepared to leave if it explodes in size again."

"A proposal to exclude prisons from California's long-awaited rules to protect indoor workers from extreme heat threatens to delay implementation until well into the summer or kill off the safeguards altogether, labour rights advocates say."

"Famous for its lush vineyards and cherished local wineries, Napa Valley is where people go to escape their problems."

"Signal Hill Petroleum spent millions to overturn California’s landmark law protecting neighborhoods from oil drilling. Now it wants to drill dozens of new wells in a city established a century ago to avoid taxes on oil development."

"But it may not be what it appears"

"A plan to develop a new city northeast of San Francisco has been seven years in the making, but until recently, the details were largely kept under wraps. Now that the plans are public—and the proposal has garnered enough signatures to make it onto the November ballot for voter consideration—residents and activists are squaring off to defeat what the developers promise will be a kind of green urban paradise.

"The first heat wave of the season has arrived earlier than usual across much of the U.S. Southwest, with dangerously hot conditions that produced triple-digit temperatures on Tuesday. Forecasters say temperatures are likely to top 110 degrees Fahrenheit (43.3 Celsius) in some areas by Thursday."

"Last week, General Sherman, California's most famous giant sequoia, got a checkup."