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

A blast of Arctic air is set to cover much of the United States with temperatures below freezing starting on Friday and into ...

Here is what is and isn't a polar vortex when Colorado receives cold like what is forecast for the holiday weekend.

Though the inauguration in recent memory has typically taken place on the Capitol's West Front, there is precedent for moving ...

Male polar bears can weigh up to 700 kilograms (1,540 pounds) and reach lengths of over three metres (10 feet). This makes them the largest land predators in the world, outmatching even grizzly bears.