Climate change threatens California water supply

Climate change threatens California water supply

www.reuters.com

BERKELEY, California (Reuters) - California's tallest mountain range, the Sierra Nevada, may lose nearly all its snowpack by the end of the century, threatening a water crisis in the nation's most populous state, a leading scientist and Nobel laureate said.

California could lose 30 percent to 70 percent of the snowpack to the ills of greenhouse gases and global warming, Steven Chu, director of the Lawrence Berkeley National Laboratory and the 1997 winner of the Nobel Prize in Physics, told Reuters.

A "bad scenario" of atmospheric carbon could mean the loss of 70 percent to 93 percent, Chu said in an interview, citing published climate models.

California depends on the snowpack to generate hydroelectricity, help irrigate the biggest agricultural economy in the United States, fill reservoirs, and support wildlife and recreation on the state's rivers.

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It's really time to do something about globla warming. Imagine if there is water shortage in California in 10 years... What people will do?... Massive mouvement, immigration... We need to act now.

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