Yes. Although this blast of Arctic air sweeping the nation has thrown Bostonians scrounging through closets to find hats, ...

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

F or bears of both the market and polar kind, a planet without an ice cap is a tragedy. The Arctic is warming four times ...

New Orleans went from almost 70 degrees to a record snowstorm within four days. In a few months, hurricane season will start, ...

Extreme cold has a unique ability to render survival dependent on uninterrupted energy supplies. A power outage during a heat ...

Winter’s most potent Arctic blast yet is about to unleash dangerously low temperatures that will be the coldest to hit the ...

How the Polar Vortex Can Bring Arctic Blasts to the U.S. Vast weather patterns can carry blasts of frigid air far from the ...

A mass of air called the polar vortex has escaped the Arctic and plunged southward. Some scientists see the fingerprints of climate change.

Here's the latest on the winter storm.A historic winter storm is poised to produce potentially record-breaking snows from ...

The Arctic is heating up particularly fast as a result of global warming—with serious consequences. The widespread permafrost ...

Anytime we get an Arctic air blast down this far south, this is an artifact of the polar vortex rearing its ugly head,” said climatologist Barry Keim .