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.

There’s hope that the deep freeze enveloping southeast Michigan — and much of the country — will begin to thaw next week, but ...

It’s really, really cold again – as the US shivers through at least the eighth blast of air from the Arctic this winter. Here ...

A new global assessment shows that the world's glaciers are melting faster in the last 10 years compared to the previous ...