Startling maps in a new report on the Sacramento-San Joaquin Delta show the dramatic loss of marshlands that once supported a vast array of wildlife.
On November 4, Californians will be able to exercise their opinion about water at the ballot box when they vote on Proposition 1, a $7.5 billion measure that would authorize the state to issue new bonds to pay for a wide variety of water-related projects.
Tiny and delicate, pygmy seahorses survive by attaching to vibrant corals where they become nearly invisible to both predators and researchers. Now, biologists at the California Academy of Sciences have successfully bred them in captivity for the first time. Finally, they're able to study the seahorses' amazing act of camouflage up close.
NASA's latest mission to Mars, MAVEN (Mars Atmospheric and Volatile Evolution), entered Martian orbit less than a month ago on September 21. It's already rewarded us with revealing insights into the disappearance of Mars' atmosphere.
Activists are hoping local residents will do what state legislators haven’t done -- shut down the controversial oil production technique known as hydraulic fracturing.
You can now visit 14 California State Parks from the comfort of your own web browser, using Google Street View.
After nearly a decade of negotiations, scientific studies, congressional intervention and protracted legal skirmishing, the National Park Service and Drakes Bay Oyster Co. announced Monday they've reached agreement on terms for the firm's final exit from Point Reyes National Seashore.
Only 1924 and 1977 were drier. And there's little in the long-range forecasts to suggest a rebound soon.
Climate change is making the weather pattern that's responsible for California's drought more likely, according to a new study from Stanford.
Streets in New York City and other towns are being taken over by marchers Sunday in what organizers hope will be the largest climate change protest in history.
Curiosity has reached the base of Mount Sharp, its primary mission goal. It's a 3-mile-high mound of sediment that preserves a geologic record of Mars going back billions of years.
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.
California law requires that children entering kindergarten be fully vaccinated against a range of diseases. But the rate of parents opting out of vaccines for their children has doubled since 2007. Look up information about schools here.
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.
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.