Proof? How about Physics? As the oceans of the World get warmer, the rising warmer air, will change the course of the jet stream. The result will be what is happening RIGHT FRIGGIN NOW ! The jet stream is WAY out of whack, and is dipping too far to the south. That draws down the frigid Arctic air , all the way to the Gulf. Look at the severe ice storm. Yes , there have been ice storms in the past, but this is the "KATRINA" of ice storms ! Do some easy 'goggleing' ,and you'll find all sorts of scientific info. Just don't fall for false data from oil companies or censored by the previous corrupt admin.