Scientists have quantified how much climate change has driven the population decline of polar bears living in Canada's Hudson Bay.

The easy answer is a deep southward dip in the polar jet stream that typically rings the globe at higher latitudes but is ...

After a summer of fasting on land, the bears need to get back to their frozen home to hunt seals and bulk up. But their migration ritual is changing.

"An Arctic air mass is expected to plunge into the Central U.S. this week, with high confidence for widespread, ...

The polar vortex is not synonymous with cold snaps, but when it slides toward the United States, the polar jet stream can ...

We often see photographs that show how glaciers have diminished in size over the last century. The recession of glaciers is a ...

The polar vortex, a pattern in the Arctic region, is causing extreme cold weather in the US and Europe. Despite this, the world is warming, with January setting a monthly heat record. Climate change ...

How is climate change affecting polar regions? Climate change is amplified in the polar regions. The northern and southern reaches of the planet are warming faster than any area on Earth, with ...