Using complex new modeling, the scientists have found that rapidly melting Arctic sea ice now threatens to diminish precipitation over California by as much as 15% within 20 to 30 years. Such a change would have profound economic impacts in a state where the most recent drought drained several billion dollars out of the economy, severely stressed infrastructure and highlighted how even the state most proactively confronting global warming is not prepared for its fallout.
The latest study adds a worrying dimension to the challenge California is already facing in adapting to climate change, and shifts focus to melting polar ice that only recently has been discovered to have such a direct, potentially dramatic impact on the West Coast. While climate scientists generally agree that the increased temperatures already resulting from climate change have seriously exacerbated drought in California, there has been debate over whether global warming would affect the amount of precipitation that comes to California.
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