Here is an article that is a little more 'scientific' and a little less 'speculative' than the one I just posted on 'The Coevolution of Planets and Civilizations'. This one is regarding some rich new detail concerning the recent climate history of Greenland. By recent, I mean back to the last Interglacial and then the early Holocene. In both of those periods, northwest Greenland was warmer than we have previously realized:

https://www.sciencedaily.com/release...0604151150.htm