By Steve Gorman and Blake Brittain WASHINGTON, Jan 25 (Reuters) - A powerful winter storm spread a paralyzing mix of heavy ...

The storm system’s dangerous mix of ice, heavy snow and Arctic cold has halted some transit systems and closed schools in ...

The area most U.S. Arctic strategists think needs the most immediate development is not Greenland but the Bering Sea, almost ...

There are strong upper-level winds rotating around the North Pole that normally keep all cold air contained, but in the ...

A conveyor belt of ocean water that loops the planet and regulates global temperatures could be heading for a tipping point.

But the cold that follows will be severe along the Gulf Coast, according to forecasters. Temperatures in New Orleans were ...

An unusually brutal winter storm is set to pummel more than 160 million Americans from Friday, as a stretched "polar vortex" sends a devastating blast of Arctic air, bringing heavy snows and freezing ...

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The Polar Plunge is here and will be sticking around for several days.

Mars may have been a "blue planet" with an ocean the size of today's Arctic Ocean, a new study suggests.

Canada has been boosting its forces in the Arctic in the face of new threats - and US concerns.

Jan 24 (Reuters) - British Prime Minister Keir Starmer spoke with U.S. President Donald Trump by telephone on Saturday, with ...