However, a deep freeze, thanks to the polar vortex dipping down from Siberia, is about to bring even harsher arctic blast to ...

Another Arctic blast has been forecast to bring frigid air to a large section of the United States later in January.

The most unusually cold air in the Northern Hemisphere will be over the United States early next week, bringing dangerously ...

Arctic winds from a powerful polar vortex are sweeping ... According to the Windy weather map, temperatures are currently freezing or below in most of the United States, with the coldest ...

This polar projection map of Asia and North America shows the approximate terminal Pleistocene shoreline. The center of geographic distribution of Yeniseian and Na-Dene language is in Beringia.