Cold-water immersion may boost mental health and well-being. The practice carries risks, too, including drowning and ...

Off the coast of Antarctica, the sea ice retreated toward the southernmost continent and, like a bottle cap taken off a soda ...

During the winter the polar vortex spreads out, shooting cold air southward. Here's what to know as we head into the cooler months in South Carolina.

Beneath the Arctic’s frozen surface, tiny algae are defying the rules of biology. Their survival strategy not only redefines ...

Bitingly cold Arctic air keeps pummeling the U.S. with ruthless cold snaps—despite warming winters nationwide. A study explains why: the solution lies far above your head, in the upper atmosphere ...

"The atmosphere inside the polar vortex, from near the surface to about 30 kilometers high, is characterized by extreme cold temperatures ... atmosphere freezes out and is deposited onto the ice cap, ...

The polar vortex is stirring up, bringing the earliest hints that the seasons are changing. That shift is most noticeable in northern Wisconsin, where a frost advisory was in effect early Monday, Sept ...

The polar vortex is beginning its seasonal strengthening, signaling a gradual shift toward cooler weather. Frost advisories were issued in parts of the Great Lakes region, New York, and New England as ...

It’s almost September, which means fall weather is just around the corner. Although this summer has been milder than last year, we’re still itching for that crisp, autumn “football season” air. So ...

Elite combat troops shred their physiques to look like Hollywood hunks. In the Arctic, that can kill you. The cold eats away at soldiers, who lose on average 3,000 calories a day while on exercises in ...