snow pack

(Newser) - The snowpack in the Sierra Nevada mountains, which provides 30% of California's fresh water, is at its lowest level in seven years—a devastating sign of drought conditions to come. The end-of-winter snowpack measurement—which comes from measurements at more than 265 sites across the state, taken annually on...

(Newser) - Blame for a dramatic decrease in Western mountain snowpacks rests squarely on global warming, researchers said yesterday. Using computer models of 50 years' worth of data, scientists confirmed warming is turning snowfall into rain, melting the packs earlier and drying up more rivers by summer. The trend threatens to trigger...