After a summer of fasting on land, the bears need to get back to their frozen home to hunt seals and bulk up. But their migration ritual is changing.

Roads in Virginia and North Carolina remained treacherous Thursday as unusually heavy snow led to hundreds of accidents, ...

The polar vortex hit its peak across much of America on Wednesday, with an icy grip that made Arctic Greenland seem like a toasty vacation spot in comparison.

Today, we know of Mars as a cold, dry desert, with patches of subterranean ice and ice caps at its poles. Billions of years ...

As global warming spreads pests, diseases and toxins, new programs are developing to help medical professionals look at their ...

The arctic outbreak that has enveloped the central U.S. is hitting its peak Thursday as frigid temperatures continue to ...

Climatologists warn the world will likely experience even more severe swings in weather and climate patterns going forward.

This point will only be reinforced every time a catastrophic weather event hits any part of the world. The UK could be at the ...

A "polar vortex" is bringing intense cold and heavy snow to large swaths of the US and Canada. How is this winter weather ...

The polar vortex hit much of America, making temperatures in North Dakota colder than on Mars. Despite this, a 90-degree warmup is forecasted for next week. This unusual weather pattern is linked to ...

Poll reveals widespread concern over climate change among Americans, yet it remains a secondary concern for voters. What's ...