Now you just knew that they would come up with this "explanation, didn't you! 1/7/2014 |By Eric Holthaus, The Atlantic Cities How global warming can make cold snaps even worseThe cold air pushing toward America's heartland is of a duration and magnitude rarely seen since record-keeping began in the 1870s. In Minneapolis, forecasters warned that all-time wind chill records could be broken, with a stunning -65ºF predicted for Monday morning. MSN Weather: Check your local forecastAs the record-setting cold spreads across the US, brace yourself for this conversation: Your friend: "Sure is cold