A strong polar vortex in the stratosphere has brought subzero temperatures to the Midwest, Mid-Atlantic and deep into the South.

Research has found that rising temperatures in the Arctic are weakening weather systems that normally trap the cold around ...

The most unusually cold air in the Northern Hemisphere will move into the Plains and Midwest this weekend as the polar vortex lobe zaps the country like a jellyfish tentacle. Temperatures may be ...

Extreme cold and snow smacked the Gulf Coast states this week, but the polar vortex may not be to blame.

Indigenous peoples of the Arctic traditionally use polar bear fur for its ice-resistant properties, but the science behind ...

It's a term you hear every couple of winters, when we get stuck in the coldest of cold patterns – polar vortex. But what exactly is it and how does it impact our weather? The polar vortex is ...

The unseasonable chill that has swept through the eastern half of the US defies last year's mild winters and the South's ...

With the Northern Hemisphere well into the winter months, it may seem like temperatures are cold enough already. However, a deep freeze, thanks to the polar vortex dipping down from Siberia ...

The de-icing properties of polar bear sebum could fuel new innovations, scientists say, potentially unlocking alternatives to ...

Research has found that rising temperatures in the Arctic are weakening weather systems that normally trap the cold around ...