Herding them is the key to Sami culture, and depends on access to wide, open landscapes. Map: The Economist The green ...

If you’ve spent a lot of time outdoors in New England, you’ve likely crossed paths with, and probably stepped on, lichens.

If you’ve spent a lot of time outdoors in New England, you’ve likely crossed paths with, and probably stepped on, lichens.

Melting Arctic ice increases human and animal interactions, raising the risk of infectious disease spread. Researchers urge ...

But growing rivers of meltwater from the Greenland Ice Sheet and the Arctic are diluting the salt concentrations of surface waters, preventing them from plunging to the seafloor. The warming hole that ...

Parts of Alaska are warming up to four times faster than most of the rest of the world. That's forcing tough choices for ...

The photo of sled dogs trudging through meltwater atop the Greenland ice sheet offers stunning shades of blue — and a ...