A polar vortex dipping down from Siberia will bring a cold front with frigid temperatures to nearly 300 million Americans.

"The most climate-stressed regions all contained permafrost, which is vulnerable to thaw as temperatures rise," researcher Sue Natali said.

A new blast of Arctic air sweeping from north to south will bring bone-chilling temperatures to millions of Americans this weekend and next week.

However, “In the past 20 years, it accelerated towards Siberia, increasing in speed every ... don’t worry. The map and other GPS-driven apps in your smartphone will receive the required ...

It's a hint of the drama unfolding over the hills - the battle against fire. Forest fires in Siberia are common. But this summer unusually hot weather, dry thunderstorms and strong winds have ...

New research reveals the Arctic is changing fast as permafrost regions are warming, forests are stressed, and flooding is ...

According to the new map, the magnetic North Pole has shifted from northern Canada toward Siberia over the past five years. It also indicates that the locations of blackout areas, where compasses ...