Frigid air that normally stays trapped in the Arctic has escaped, plunging deep into the United States for an extended visit ...
It's a cold air outbreak that some experts say is happening more frequently, and paradoxically, because of a warming world. Such cold air blasts have become known as the polar vortex. It's a long ...
Why More Frequent Cold Blasts Could Be Coming From Global Warming Frigid air that normally stays trapped in the Arctic has escaped, plunging deep into the United States for an extended visit that ...
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