Researchers analyzed blood samples from polar bears located in northeastern and southeastern Greenland. The results showed ...

Three experts share the science behind taking a dip in cold water—and offer safety tips that any potential plungers should ...

High above the North Pole, in a slice of atmosphere rarely noticed and even less understood, a transformation is underway. Over the next 10 days, changes in the stratosphere will upend weather ...

A polar vortex break causes bitter cold across the northern U.S. It’s a regular winter phenomenon, sending Arctic air southward during weakened polar winds. The break results from sudden stratospheric ...

A polar vortex system is expected to bring two or more cold waves to Florida this week. Temperatures in North Florida could drop into the upper 20s, with a chance of frost or freeze. Central and South ...

Polar vortices exist throughout the year at the poles. In the Northern Hemisphere, the polar vortex expands many times over ...

The weeks after Thanksgiving might just be a tease for some intense Arctic cold that could arrive later in December. So, cold weather lovers — your time appears to be approaching. And snow lovers, the ...

It’s really, really cold again — as the US shivers through at least the eighth blast of air from the Arctic this winter. Winter, which is warming faster than any other season for much of the US, seems ...

Arktos and Walker, a beloved duo of male polar bears, reside at Highland Wildlife Park in Kingussie and were filmed playing in the snow this week.

The Polar vortex is causing temperatures to plummet dangerously across the Philadelphia region, and frostbite could become a ...