NOAA report says California drought mostly due to natural causes, not global warming
from The Washington Post
The build-up of heat-trapping gases in the atmosphere may worsen western droughts in the future, but it is not the principal driver of historic drought afflicting the entire state of California right now, says a major NOAA report. "Natural oceanic and atmospheric patterns" are to blame for the drought, the 42-page report says. Specifically, it highlights a persistent area of high pressure off the West Coast that has blocked rain-bearing storms from coming ashore – which some have dubbed the "ridiculously resilient ridge." The pattern of sea surface temperatures also contributed to the drought, the study says.
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