Feeling a Chill? Blame the Polar Vortex. And Global Warming. A blast of Arctic air is freezing the northern United States, driven by the jet stream and perhaps made more extreme by climate change. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:A Mystery Frequency Disrupted Car Fobs in an Ohio City, and Now Residents Know WhyThe Eta Aquariids Meteor Shower Will Peak in Night SkiesEta Aquarid 2019: Meteor shower peaks TONIGHT – ‘Look towards the Water Jar'Dragonfire: Royal Navy readies deadly laser super weaponNASA asteroid WARNING: ‘New York in RUINS’ in planetary defence exerciseNASA marks Stars Wars Day with ‘CRITICAL’ SpaceX launch