"LOS ANGELES - The future of the troubled San Onofre nuclear power plant could balance on an inescapable question: Is it worth the money to fix it?"

"Nearly two years after the pipeline explosion that killed eight people and devastated a neighborhood in San Bruno, Pacific Gas and Electric Co. considers 239 of its natural-gas transmission lines to be at risk of a similar failure, according to a company assessment obtained by The Chronicle."

The Quechan Tribe has filed suit to halt construction of the 112-turbine Ocotillo Wind Energy Facility on BLM-administered land in Southern California.

"UCLA researchers say the number of days topping 95 degrees each year will jump by as much as five times. The study could help local governments prepare for extreme temperatures and reduce risk to residents, L.A. Mayor Antonio Villaraigosa says."

"Faulty computer modeling caused the equipment problems that are expected to keep the San Onofre nuclear plant dark through the summer, federal regulators said Monday."

"Gov. Jerry Brown urged state regulators Monday to reduce the prevalence of chemical flame retardants in household furniture, joining a growing number of critics who argue the chemicals are toxic and unnecessary."

"State contractors are to drain and reshape the polluted Malibu Lagoon. Activists, who say the project would destroy the salt marsh and flatten Surfrider Beach's waves, pledge to stand in the way."

"A new study looking at key aquifers beneath the Great Plains and California's Central Valley suggests that areas of Texas and Kansas are drawing groundwater at an unsustainable rate."

"SEQUOIA NATIONAL PARK, Calif. -- The California forest that is home to the biggest and oldest living things on earth, the giant Sequoia redwoods, also suffers a dubious distinction. It has the worst air pollution of any national park in the U.S."