"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. [2]

SEE ALSO:

"Hundreds of Flights Cancelled Due To Beijing Smog" (AFP) [3]