Despite a warming climate, bone-chilling winter cold can grip parts of the U.S. In a study appearing in Science Advances, ...

The mechanism involves atmospheric waves that bounce between the upper atmosphere and ground level, amplifying weather patterns and making them more extreme. Scientists call this “stratospheric wave ...

Despite a warming climate, bone-chilling winter cold can grip parts of the U.S.—and this study explains why. Researchers found that two specific ...

JERUSALEM, July 11 (Xinhua) -- An international research group has found that extreme cold snaps in the United States are driven by disruptions in a high-altitude Arctic air mass called the polar ...

In the stratosphere over Siberia, temperatures recently jumped nearly 100 degrees Fahrenheit, shoving the polar vortex off its North Pole perch.

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Climate Change and Arctic Amplification Climate change, especially its impact on the Arctic, plays a pivotal role in disrupting the polar vortex.

While global temperatures are rising, climate change is paradoxically causing harsher and colder winters in many regions.

Technically, the polar vortex is 20 miles high in the stratosphere. And what's happening right now is down lower.

It gets stretched out.” When the polar vortex stretches, it can either bring that cold air south to the United States or toward Asia, said Cohen, an expert in winter weather.

This winter, with record snow in New Orleans and drought and destructive wildfires in Southern California, has not been normal.

As we sweat away the summer, imagine walking out of 98-degree heat and into a 72-degree, climate-controlled ballpark to watch the Chicago White Sox play.