"Pollution from Asia Shaping California Storms"

"The Scripps Institution of Oceanography will present fresh evidence during a science conference in San Francisco Tuesday that pollution from central Asia affects the intensity of winter storms in California's Sierra Nevada, which provides a portion of the water consumed in San Diego County."

"The new finding -- which Scripps summarized online -- is largely based on an analysis of two storms that occurred a week apart in the Sierra Nevada in 2009. The second storm produced 1.4 times more precipitation than the first."

Gary Robbins reports for the San Diego Union-Tribune December 4, 2011.

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Source: San Diego Union-Tribune, 12/06/2011