Global warming has brought a new normal to the Arctic, with warmer air and ocean temperatures, thinner and less expansive summer sea ice, and greener vegetation in coastal regions abutting the open water.

by fen montaigne of Yale 360

As sea ice rapidly melts in the Arctic and parts of Antarctica, the threat to creatures that use the ice as a feeding platform — polar bears and walruses in the Arctic, and Adélie penguins in the Antarctic — has been well publicized.