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

Because of an unstable polar vortex, experts have projected record low levels of Arctic sea ice for the coming winter.

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

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 ...