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.

The tenth and coldest polar vortex of the season is blasting ... Worst hit will be the north-central region, with windchills expected to drop as low as minus 60 degrees Fahrenheit in areas of ...

A major disruption to the Arctic polar vortex has bumped the ring of wind that circles the North Pole off its perch and towards Europe, a new animation shows. The migration could trigger colder ...