Earlier research has shown that the Arctic is warming significantly faster than the rest of the planet, leading to reductions in ice cover as well as the weather changes mentioned here.

Microbes across Earth's coldest regions are becoming more active as glaciers, permafrost and sea ice thaw, accelerating carbon release and potentially amplifying climate change, according to a new international review from McGill University.

Brookfield Zoo, which has cared for generations of polar bears, hopes to offer guidelines for an area where mothers den at high densities.

It's well known that polar bears are the top predator in the Arctic, each one killing a seal every three to five days.What hasn't been well understood

For decades researchers in northern Norway had tried to bring back vital kelp forests after overfishing damaged marine ecosystems. Now a simple solution is proving successful.

ON HUDSON BAY (AP) — 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 climate change. And it's getting lower on polar bears.

Rapid changes in climate in the polar regions are causing observable ecological impacts of various types and degrees of severity at all ecosystem levels. Even larger changes and more significant impacts are anticipated. As species respond to changing ...