It's not the first bout of extreme cold to hit the US this winter ... heating and other human activities. So how can these warming temperatures result in extreme cold? Understanding a polar ...

If you feel like you're bundling up in more layers and wrapping your scarf tighter this winter, it's because intense cold has been running ... two times in February so far, Cohen said. ' ...

January and February have been colder than normal in Rochester this year One reason its so cold in Rochester is a distortion in the polar vortex Other factors include tropical fluctuations that ...

It's not the first bout of extreme cold to hit the US this winter. In January, freezing temperatures and storms spread heavy snow, sleet and freezing rain across southern states from Texas down into ...