Weather Study links polar vortex chills to melting sea ice North America, Europe and Asia could see more frequent and stronger visits of that cold air Associated Press Washington D.C. Sep 2, 2014 if (!window.OX_ads) { OX_ads = []; } OX_ads.push({ "auid" : "417989" }); document.write(' '); Remember the polar vortex, the huge mass of Arctic air that can plunge much of the U.S.