Rapidly melting sea ice driven by climate change, a crisis that has transformed the Arctic into a litmus test for our ...

The Arctic is warming nearly four times faster ... who explains that it's melting the sea ice that bears depend on. "It's important, because it's a complete transformation of the ecosystem ...

More than polar bears are threatened in this changing gateway to the Arctic, where warmer waters melt sea ice earlier in the year and the open ocean lingers longer. For what grows, lives and ...

Polar bears are great swimmers but they can’t outswim seals. So they hunt them on the Arctic sea ice, waiting for them to come up for air and then pouncing. But as the amount of sea ice decreases due ...

Icebreakers provide assured United States access and presence to the polar regions, the U.S. Coast Guard said.

The expedition came at a time when the Arctic region was warming at four times the global average, putting mounting pressure on the iconic predators as their sea-ice habitat shrank. "The idea is to ...

Researchers are trying to rebuild sea ice above the Arctic Circle so it can reflect the sun’s warming rays, slowing climate ...

Scientists are piecing together when polar bears (Ursus maritimus ... perhaps towards the end of the last ice age. It is also unclear if other arctic animals have similar adaptations on these ...

ON HUDSON BAY — Searching for polar bears where the Churchill River dumps into Canada's massive Hudson Bay, biologist Geoff York scans a region that's on a low fat, low ice diet because of ...

More than polar bears are threatened in this changing gateway to the Arctic, where warmer waters melt sea ice earlier in the year and the open ocean lingers longer. For what grows, lives and ...

More than polar bears are threatened in this changing gateway to the Arctic, where warmer waters melt sea ice earlier in the year and the open ocean lingers longer. For what grows, lives and ...