A ‘polar vortex collapse’ is set to plunge the United States back into the frigid weather much of the country suffered through in February.A ‘polar vortex collapse’ is set to plunge the United States back into the frigid weather much of the country suffered through in February. A ‘polar vortex collapse’ is set to plunge the United States back into the frigid weather much of the country suffered through in February. Science & tech Articles | Mail Online
Polar vortex collapse set to cause extreme winter weather and sub zero temperatures across US
