The San Francisco Public Utilities opened on Friday a new cement-encased, steel-lined tunnel that runs from Sunol Valley to Fremont. It will carry an average of 265 million gallons of water a day for customers of the Hetch Hetchy Water System Improvement Program, which consists of more than 80 projects to seismically retrofit and upgrade an 80-year-old water system serving 2.6 million people in the Bay Area.
NASA announced that Mars' Gale Crater was once the site of a vast lake that appears to have filled up, dried out and filled up again repeatedly over a much longer period than wet conditions were believed to have persisted.
A controversial effort by the California Senator to broker drought-driven water legislation is dead, for now.
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.
Activists are hoping local residents will do what state legislators haven’t done -- shut down the controversial oil production technique known as hydraulic fracturing.
The era of unlimited groundwater pumping in California could be ending. A package of bills would require local agencies to restore over-pumped aquifers.
Stanford launches a major investigation of the state's dwindling groundwater resources and finds "alarming" gaps.
Two competing camps have emerged about how to boost California's water supplies during dry times: conserve more water or build more water storage.
The unrestrained race to drill new wells could put California's biggest water source in jeopardy.
A 47-mile section of the California Aqueduct, the main artery of the state's water system, could be engineered to flow backward this summer.
Water managers are walking a tightrope this year, balancing three competing needs: how much water to deliver to people and agriculture, how much to provide for wildlife and how much to save for next year, in case it’s just as dry.
No matter where you live in the Bay Area, the answer might surprise you.
Recent observations of the dwarf planet Ceres by the European Herschel Space Observatory have revealed for the first time the presence of water vapor on this object in the Main Asteroid Belt.
State officials are trying to do damage control to help endangered salmon during the drought, but helping some fish could hurt others.
We've thought about drilling offshore for oil and gas long before we thought about finding fresh water there. A recent review paper in Nature has brought the topic of offshore fresh groundwater to wider visibility.
The San Francisco Bay Delta watershed is enormous. It has also been enormously altered. Volunteer, non-profit and government efforts have all done a great deal to restore the watershed. But according to Derek Hitchcock, an ecologist with The Watershed Project, “Cultural healing is needed before watershed healing.”
Governor Jerry Brown's emergency drought declaration allows regulators to relax some water quality standards, as the state tries to balance the needs of wildlife and people.
Importing an Arctic iceberg for freshwater? Painting brown lawns green? California has had some creative ideas for droughts in the past.