News from Fox 2 in Michigan: The extreme cold weather currently blanketing America is caused by a December blast of hot air from Morocco into the normally super-cold air high above the north pole in winter. The heat split the huge, swirling vortex of arctic wind that has historically kept the coldest air from sliding south. Consequently, a part of the vortex has drifted down into America.
Experts predict that the vortex will remain out of whack until at least mid-February, and perhaps mid-March. Climate scientists have been predicting for a long time that this would happen more often as a consequence of the global heat accumulating under the thickening blanket of carbon dioxide emissions.
Credit for this happening more often goes to the fossil fuel companies that knew the science and lied about it, and to the Republican politicians who have protected their fossil-fuel mega-donors such as the Koch brothers, rather than protecting the American people.