Scientific American: Portions of the Greenland ice sheet melted a "moderate" amount thousands of years ago during an extremely warm period, raising new questions about its likely behavior in the future amid rising temperatures, according to a new study from a team of international scientists.
The conclusions about the Eemian interglacial period, 130,000 to 115,000 years ago, enlighten an ongoing debate over a deceptively simple question: To what degree will Greenland add to rising seas in a warming world, and to what...