Three factors are combining to increase the likelihood of a weaker polar vortex this winter, the website reports. And a ...

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

Another factor adding to the polar vortex stretching is a big blob of high pressure in the upper atmosphere over Greenland.

The condition of the polar vortex influences everyday weather around the globe. Scientist issue warning about concerning ...

This phenomenon has also already struck Europe and China this summer, leading to the temporary closure of the Eiffel Tower and worries about wilting rice crops, respectively ...

A new study challenges the idea that climate change is behind the recent erratic behavior of the polar jet stream, the massive current of Arctic air ...

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

Europe sizzled in its first major heat wave of the summer on Tuesday. Barcelona recorded its hottest June in over a century.

For Trump, Vladimir Putin is a man looking for an off-ramp from the Ukraine war. For NATO and Mark Rutte, he may be just getting started.