The Arctic hasn’t been this warm for 3 million years – and that foreshadows big changes for the rest of the planet

arctic

Ice floe drifting in Svalbard, Norway. Sven-Erik Arndt/Arterra/Universal Images Group via Getty Images Julie Brigham-Grette, University of Massachusetts Amherst and Steve Petsch, University of Massachusetts Amherst Every year, sea ice cover in the Arctic Ocean shrinks to a low point in mid-September. This year it measures just 1.44 million square miles (3.74 million square kilometers) … Read more