The South Napa Earthquake revealed how much we've yet to learn about seismic faults in the Napa Valley.
Governor Jerry Brown signed legislation Tuesday that will require the first-ever rules for pumping groundwater in California. Here's why lawmakers and the governor acted, and what the new laws mean.
A professor whose research is helping a California police department improve its strained relationship with the black community and a lawyer who advocates for victims of domestic abuse are among the 21 winners of this year's MacArthur Foundation 'genius grants.'
California water districts are eyeing a potential new source of water: trees. After a century of fire suppression, Sierra Nevada forests are more dense than ever before. And those pine trees are taking up a lot of water that might otherwise run off into California rivers.
To help adapt to the increased flood risks affecting people and property along the coast, the San Francisco Bay and inland waterways, California lawmakers sent a bill to Governor Jerry Brown that would direct the state to compile the nation’s most elaborate sea level rise planning database.
The Napa quake jump-started several streams in the Napa and adjoining valleys, but how long they'll run and where the water is coming from is hard to pin down.
As the drought continues, efforts to spur action include an online game that puts users in charge of California's water supply.
Most of the farm-produced seafood consumed in this country is imported, much of it from Asia, and that has raised concerns about environmental and public health regulation at overseas fish farms. Now some California aquaculture businesses are pitching environmentally friendly ways to bring more business here.
Two new California laws aim to keep flame-retardant chemicals out of furniture. But how can consumers know for sure?
One of the key fisheries on the West Coast is coming back after years of decline.
The peculiar set of ocean conditions is known as a California rainmaker -- but El Niño's reputation has been greatly exaggerated.
The era of unlimited groundwater pumping in California could be ending. A package of bills would require local agencies to restore over-pumped aquifers.
On top of the drought, the South Napa Quake damaged dozens of water pipes and last month a ruptured pipe ruptured on the UCLA campus leaked about 20 million gallons of water. So how strong is California's water infrastructure?
A U.S. Forest Service decision will allow loggers to remove dead trees from 52 square miles of forests blackened last year in a massive central California wildfire, a move contested by environmentalists.