Scientists have determined the “optimal thermal conditions” for southwestern Greenland were when summer sea surface temperatures averaged about 12°C from 9,000 to 5,500 years ago, which is substantially warmer than modern summer temperatures (4.0-5.2°C) for this region. A few years ago McFarlin et al. (2018) determined northwestern Greenland was 4-7°C warmer than 1952-2014 during the … Continue reading New Study Suggests Southwest Greenland Was 6-7°C Warmer Than Today 9,000-5,500 Years Ago