The polar vortex is making a return to the forecast, but the counterintuitive weather feature is nothing to fear.

By Ben Aris in Berlin Parts of both the Arctic and Antarctic have experienced historically high temperatures in recent weeks, ...

These severe cold events occur when the polar jet stream – the familiar jet stream of winter that runs along the boundary between Arctic and more temperate air – dips deeply southward, bringing the ...

The polar vortex is stirring up, bringing the earliest hints that the weather is changing with the new fall season. When is ...

CLEVELAND — High above the Arctic, swirling like a giant icy crown, the polar vortex is a permanent feature of our atmosphere ...

North Carolina's first freeze typically occurs between late October and mid-November, depending on the specific location. The ...

In a month when a meteorologist said the polar vortex is ramping up, slightly less than half of Kansas has seen its first ...

On the morning of January 16, Big Black River in Northern Maine dropped to -50, the coldest temperature ever recorded in Maine. Those winters didn't sustain extreme cold though. On February 21, 2018, ...

For polar bears, the climate change diet is a losing proposition, a new study suggests. With Arctic sea ice shrinking from climate change, many polar bears have to shift their diets to land during ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. For polar bears, the climate change diet is ...

FILE - This March 25, 2009, file photo provided by the U.S. Geological Survey shows a polar bear in the Beaufort Sea region of Alaska. On Dec. 28, 1973, President Richard Nixon signed the Endangered ...