The Arctic

The worldwide ban on ozone-depleting chemicals stopped Arctic ozone from disappearing and forming an "ozone hole" similar in size to Antarctica's, a new study finds.

Wooly mammoths and other ice age beasts dined on nutritious, high-protein wildflower plants known as forbs, new research suggests.

A 54-year-old message in a bottle was found on Ward Hunt Island, a remote island in the northernmost part of the Canadian Arctic.

For a team of paleontologists heading off to the Arctic, packing is a science.

The Arctic narrowly avoided an ozone hole in late winter and early spring of 2011.

Frigid air surges back and forth across the US.

The photographer suffered mild frostbite to get the shots.

High school students from several states traveled across the world to study with a team of international researchers.

A storm earlier this month as well as a long-term trend toward thinning contributed, scientists say.

A newly launched polar-orbiting satellite snapped the picture.