The South Napa Earthquake revealed how much we've yet to learn about seismic faults in the Napa Valley.
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.
The peculiar set of ocean conditions is known as a California rainmaker -- but El Niño's reputation has been greatly exaggerated.
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.
From heavy machinery to hand-held flour sifters, this town is pulling out all the stops to save its water.
Reforestation is common after large fires in the West, but some scientists say it’s time to rethink how forests are replanted.
For two generations, psychiatrists have treated schizophrenia by medicating its most obvious symptoms: delusions and hallucinations. Were they wrong?
A psychotic break can lead to social isolation, hospitalization or medications with sometimes disabling side effects. Now some clinics are taking a controversial approach and trying to intervene earlier.
Investigative report prompted legal action. And some districts are responding.
Activists are hoping local residents will do what state legislators haven’t done -- shut down the controversial oil production technique known as hydraulic fracturing.
Marbled murrelets are rare seabirds that lay just one egg a year, and those eggs are a favorite food item for another bird: Steller’s jays. Scientists are hoping to trick the jays into avoiding the murrelet eggs using decoy eggs with a rude surprise inside.
The data could yield a much more precise picture of how accumulating greenhouse gases will affect the planet.
Fights are breaking out over controversial water sales. Some farmers say they need the water to keep trees alive, while others say groundwater pumping depletes supplies for neighboring farms, and could threaten California's already-stressed aquifers.
Mountain meadows that would normally be covered with wildflowers have nothing to offer the bees this year, as the flowers lie dormant in the drought. Beekeepers are looking at drastically reduced production, and in some cases are just trying to keep their bees alive.
Seasonal firefighters started training months earlier than usual this year. It may seem like common sense that it's dry out there, but there is a science to knowing how dry, and to knowing when the threat of wildfire is at its worst.