29 Jun '14, 9pm

Warming Period 400,000 Years Ago Resulted In Near-Complete Deglaciation Of Southern Greenland

Warming Period 400,000 Years Ago Resulted In Near-Complete Deglaciation Of Southern Greenland

The researchers’ analysis of the scope of the ice loss suggests that deglaciation in southern Greenland 400,000 years ago would have accounted for at least four meters — and possibly up to six meters — of global sea level rise. Other studies have shown, however, that sea levels during that period were at least six meters above present, and may have been as much as 13 meters higher. Carlson said the ice sheet loss likely went beyond the southern edges of Greenland, though not all the way to the center, which has not been ice-free for at least one million years. In their Nature article, the researchers contrasted the events of Marine Isotope Stage 11 with another warming period that occurred about 125,000 years ago and resulted in a sea level rise of 5-10 meters. Their analysis of the sediment record suggests that not as much of the Greenland ice sheet was lost — in fact, on...

Full article: http://planetsave.com/2014/06/29/warming-period-400000-ye...

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