See the polar vortex in action as it sank the States into a big freeze in January.
As a dangerous winter storm moves out of the South and up the East Coast, follow the damage left in its wake.
The Arctic blast sweeping across the Eastern half of the U.S. is normal winter weather, experts say.
The cold snap triggered by the polar vortex was paltry compared to cold waves in the past four decades.
It can swallow half a continent in one bite, but there's a lot more than just weather behind this wintry beast.
How can it be snowing and frigid if the planet is on a global warming trend?
From 1999 to 2011, men accounted for nearly 70 percent of hypothermia-related deaths in the United States. Continue reading →
A mind- and body-numbing — minus 136 degrees Fahrenheit was measured between Dome Argus and Dome Fuji, two summits on the East Antarctic Plateau.
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