The South Napa Earthquake revealed how much we've yet to learn about seismic faults in the Napa Valley.
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 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.
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.
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.
A century ago, miners working in California's Death Valley reported seeing boulders on the desert floor with long trails behind them — as if the stones had been pushed across the sand. But, despite 60 years of trying, no one ever saw what moved them. Now scientists think they have the answer.
Sleep apps can help track sleep, but experts say to stay away from too much tech before bed. On Forum, sleep scientists debunked myths, like what the effects are of sugar, alcohol, hormones and health on your sleep.
Later this week, the U.S. Forest Service will release plans to allow logging companies to harvest some of the dead trees. Some environmental groups say it would destroy important wildlife habitat.
Some parts of California’s mountains have been uplifted by as much as half an inch in the past 18 months because the massive amount of water lost in the drought is no longer weighing down the land, causing it to rise a bit like an uncoiled spring.