The polar vortex’s icy grip on much of America has Arctic Greenland seeming like a toasty vacation spot by comparison.

FOX Forecast Center / FOX Weather The polar vortex has returned to the U.S., and frostbite-inducing temperatures are blasting millions of Americans. According to the FOX Forecast Center ...

Patience: A polar bear still-hunting on the sea ice of Hudson Bay, Manitoba, Canada. (Courtesy: Jenny E Ross) In the teeth of the Arctic winter, polar-bear fur always remains free of ice – but how?

I'm Mimi Kiley reporting. The term "polar vortex" usually refers to the gigantic circular upper air weather pattern in the Arctic region. It is a normal pattern that is stronger in the winter and ...

NSIDC's Polar Stereographic Projection was originally designed to be optimal for sea ice applications, though it is now used for many other products. Northern Hemisphere (left) and Southern Hemisphere ...

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