https://en.wikipedia.org/wiki/Polar_vortex#Climate_change https://en.wikipedia.org/wiki/Polar_vortex#Climate_change http://www.accuweather.com/en/weather-news/

https://en.wikipedia.org/wiki/Polar_vortex#Climate_change https://en.wikipedia.org/wiki/Polar_vortex#Climate_change http://www.accuweather.com/en/weather-news/polar-vortex-to-vist-central-u/36890008 http://www.accuweather.com/en/weather-news/polar-vortex-to-v... Changes in weather patterns brought about by melting arctic ice has brough cold arctic winds south over much of the US.