If greenhouse gases continue apace, Greenland and Antarctica's shrinking ice sheets could add 15 inches to sea level rise by 2100, researchers warn.

New findings suggest that "entering into a hibernation-like state is not a relatively new type of adaptation. It is an ancient one."

Pristine air over the Southern Ocean suggests clouds from the industrial era weren't so different from those of today, researchers say.

Our research on a remote Antarctic island found microplastics in the intestines of tiny animals.

"It is from an animal the size of a large dinosaur, but it is completely unlike a dinosaur egg."

Climate models have been overestimating how much sunlight hits the Southern Ocean. This is because the clouds there are different from clouds anywhere else. Bacterial DNA helped us understand why.

Martian meteorites allow scientists here on Earth to decode that planet's geology, more than a decade before the first missions are scheduled to bring rocks back home from Mars.

Researchers in Antarctica accidentally experienced an odd source of "laughing gas." The nitrous oxide came from large amounts of penguin guano.

"The cooling of the Southern Ocean over three decades is really unusual," given the warm-up happening everywhere else.

Ice sheets in Greenland and Antarctica have lost 318 gigatons of ice a year for 16 years. Just one gigaton would fill 400,000 Olympic-sized swimming pools.