An unidentified substance has killed or injured hundreds of birds so far.
New rules for existing power plants could mean more partners for California's carbon market.
Despite its deserved reputation for climate leadership, California will have to hustle to make its own long-range emissions goals.
The San Onofre nuclear plant has not operated since January 2012, when a radioactive leak was discovered in one of its generators. The permanent closure could put pressure on California's electrical grid in the long-term. The California Independent System Operator, which manages the grid, does not expect statewide problems with power supply this summer.