It’s really, really cold again – as the US shivers through at least the eighth blast of air from the Arctic this winter. Here ...

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

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

The polar vortex's icy grip on much of America has Arctic Greenland seeming like a toasty vacation spot by comparison.

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 ...

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

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 the ...

Polar vortex is not a synonym for “cold snap,” according to the Polar Vortex Blog at Climate.gov, and it’s not the only weather pattern to blame for blasts of cold air. "Weather can happen ...