The Arctic Ocean has had ice on it, in some form, for essentially the entire span of recognisably modern human existence. The most recent interglacial period warm enough to have melted the summer ice cap was the Eemian, approximately 130,000 to 115,000 years ago, during which paleoclimate evidence suggests the Arctic was seasonally ice-free at [...] The post Most people alive today will live to see the Arctic Ocean lose its summer ice — for the first time since before our species left Africa, 11