Environment

Exclusive: Some Arctic Ground No Longer Freezing—Even in Winter

New data from two Arctic sites suggest some surface layers are no longer freezing. If that continues, greenhouse gases from permafrost could accelerate climate change.

Rare Greenland Shark Filmed Beneath the Canadian Arctic

See footage of a rare and long-lived species of shark in the frigid, deep-sea waters off the coast of Nunavut, Canada.