California and the U.S.

The latest news and analysis covering water issues in Caliornia and the rest of the United States.

“Largest Storm Of The Year” To Bring Up To 7 Feet Of Snow To Sierra Nevada

A major storm system is forecast to slam into California from Alaska and Canada starting Wednesday night, bringing soaking rain to the Bay Area on Thursday and dumping up to seven feet of new snow to the historically dry Sierra Nevada by Saturday. But as welcome as the snow is during a very dry winter […]

Storms To Steer Needed Rain, Mountain Snow Into California This Week

A pair of storms will swing into California this week, potentially unleashing the most significant precipitation to impact the state in over a month. As the state contends with a worsening drought, depleted snowpack and renewed fears for the water supply in the coming months, the unsettled pattern may slightly ease, but not fully wipe out, […]

U.S. Supreme Court Rejects Challenge To EPA Water Regulation

The U.S. Supreme Court on Monday turned away a challenge led by states and environmental groups to an Environmental Protection Agency regulation that lets government agencies transfer water between different bodies, such as rivers and lakes, without needing to protect against pollution. The nine justices left in place a lower court ruling upholding the EPA’s […]

Hidden ‘Rock Moisture’ Possible Key To Forest Response To Drought

A little-studied, underground layer of rock may provide a vital reservoir for trees, especially in times of drought, report scientists funded by the National Science Foundation (NSF) and affiliated with The University of Texas (UT) at Austin and the University of California, Berkeley. The study, published today in the journal Proceedings of the National Academy of […]

U.S. Supreme Court Rejects Challenge To EPA Water Regulation

The U.S. Supreme Court on Monday turned away a challenge led by states and environmental groups to an Environmental Protection Agency regulation that lets government agencies transfer water between different bodies, such as rivers and lakes, without needing to protect against pollution. The nine justices left in place a lower court ruling upholding the EPA’s […]

‘Cloud Seeding’ May Make It Snow, But Will It Reduce Droughts In The West?

Machines that prod clouds to make snow may sound like something out of an old science fiction movie. But worsening water scarcity, combined with new evidence that “cloud seeding” can work, is spurring states, counties, water districts and power companies across the thirsty West to use the strategy. Last month, a study funded by the National […]