New Study: Greenland ‘Must Have Been At Least 3°C Warmer’ Than Today During The Early Holocene

by K. Richard, Jul 4, 2022 in NoTricksZone


These much warmer Greenland temperatures imply that the elevation of the ice sheet was 400 meters lower than it is today from about 6,000 to 10,000 years ago.

Scientists (Westhoff et al., 2022) report that the two largest Greenland melt events in the last few hundred years occurred in 2012 and in 1889 CE – when atmospheric CO2 levels were still under 300 ppm.

The “melt events around the Holocene Climate Optimum were more intense and more frequent” than has been observed during the modern period. And the most prominent melt events of the last 10,000 years centered around the Medieval Warm Period, 986 CE.

Overall, the elevation of the Greenland ice sheet has grown by 0.4 km since the Early Holocene, as “summer temperatures must have been at least 3 ± 0.6°C warmer during the Early Holocene compared to today.”

“We Live In The Coldest Period Of The Last 10.000 Years”

by P. Homewood, Jul 5, 2022 in NotaLotofPeopleKnowThat


Jørgen Peder Steffensen is an Associate Professor at the University of Copenhagen and one of the world’s leading experts on ice cores. Using ice cores from sites in Greenland, he has been able to reconstruct temperatures there for the last 10000 years. So what are his conclusions?

  • Temperatures in Greenland were about 1.5 C warmer 1000 years ago than now.

  • It was perhaps 2.5 C warmer 4000 years ago.

  • The period around 1875, at the lowest point of the Little Ice Age, marked the coldest point in the last 10,000 years.

  • Other evidence from elsewhere in the Northern Hemisphere confirms this picture.