From NASA Goddard: Desperately cold weather is now gripping the Midwest and Northern Plains of the United States, as well as interior Canada. The culprit is a familiar one: the polar vortex. A large area of low pressure and extremely cold air usually swirls over the Arctic, with strong counter-clockwise winds that trap the cold…
from Climate Change Skeptic Blogs via hj on Inoreader http://bit.ly/2G0rvXw
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