A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of the arctic blast.

A fearsome new Arctic blast is set to cover swathes of ... Snow and rain storms threaten millions as record-setting Christmas travel begins One dead after 'catastrophic' storm hits California ...

Extreme cold could expose residents of several states to conditions like hypothermia and frostbite over the weekend.

More than half the Arctic's coastline is Russian territory and in the last six years Moscow has built more than 475 military ...

Exploring the Arctic can be life-changing. Here’s how to do it responsibly. Exploring the Arctic can be life-changing. Here’s how to do it responsibly. See which nations are claiming parts of ...

Maps are being updated as global warming melts ice across the Arctic. Gumrf.ru Marina Migunova (file pic) is now a scientist in the Russian navy The islands found by Ms Migunova range in size from ...