Study in Geophysical Research Letters: Greenland Summit Surface Snow Temps: ‘Clearly, there is nothing unusual, unnatural or unprecedented about Greenland’s recent relative warmth’
Greenland summit 'as warm as it was there in the 1930s-1940s. And they add that 'there was another similarly warm period (-29.7°C) in the 1140s (Medieval Warm Period), indicating that the present decade is not outside the envelope of variability of the last 1000 years' -- 'Much warmer temperatures have been experienced there over many prior prolonged periods without any help from anthropogenic greenhouse gas emissions'
