The meltdown extends beyond the Arctic. Antarctica recently flirted with a record low in its own annual sea ice minimum – ...

Two-thirds of the world's polar bears could be extinct by 2050 if greenhouse gas-fueled global warming keeps melting their Arctic sea-ice habitat. The Center has led the charge to save polar bears ...

A series of historical documents sheds light on the final moments of George Washington, whose cause of death has been a mystery for hundreds of years.

Polar bears are the planet’s biggest land-based carnivores – although they actually spend most of their lives around water and ice (their Latin name means ‘sea bear’). So they’re at particular risk ...

"The Arctic's warming two to four times faster than the rest of the world, humans are expanding into areas that might be important for polar bear denning, and we know they're sensitive to ...

Polar bears are some of the Arctic's most iconic ... How much it shrinks is where global warming kicks in, scientists say. The more the sea ice shrinks in the summer, the thinner the ice is ...

By Elizabeth Devitt Sea ice extent is at record, and near record, lows for this time of year in both polar regions, leaving ...

In "Ends of the Earth," Neil Shubin travels north and south to explore the frontiers of polar science and history.