Don’t blame man-made global warming for the devastating California drought, a new federal report says.
A report issued on Monday by the National Oceanic and Atmospheric Administration said natural variations – mostly a La Niña weather oscillation – were the primary drivers behind the drought that has now stretched to three years.
The study’s lead author, Richard Seager of Columbia University, said the paper has not yet been published in a peer-reviewed scientific journal. He and NOAA’s Martin Hoerling said 160 runs of computer models show heat-trapping gases should slightly increase winter rain in parts of California, not decrease.
http://www.sciencedaily.com/news/earth_climate/severe_weather/
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