Environment Counts | IPCC AR5: During last interglacial temperatures increased 3Â°C to 8Â°C and sea level between 5 to 10 m :
During the last interglacial period (129,000 to 116,000 years ago), it is very likely that global mean temperature increased by 3Â°C to 8Â°C. There is very high confidence that the maximum global mean sea level was at least 5 m higher than present and high confidence that it did not exceed 10 m above present. The best estimate is 6 m higher than present. Based on ice-sheet model simulations consistent with elevation changes derived from a new Greenland ice core, the Greenland ice sheet very likely contributed between 1.4 and 4.3 m sea level equivalent.