The Eemian Interglacial
10/05/2019 18:48 - Posted by Tom van Leeuwen
The Eemian Interglacial was a warm period that lasted from ca. 130,000 – 115,000 years ago and was followed by the most recent glacial period (Weichselian/Wisconsinan), which lasted until about 11,000 years ago when the current warm period, the Holocene, began. So, it's the last interglacial before the current one.
The interglacial is named after the River Eem in the Netherlands because it was first recognized from boreholes in the area of the city of Amersfoort, located in the Eem Vally. Studying the Eemian is very important because the continental configuration of the Earth was very similar to the current situation. This means that ocean currents were very likely to be the same as today.
During the Eemian, global average temperatures were 2 to 4 °C higher than today while the average CO2
-concentration was 280 parts per million (ppm), around the same value as the CO2
concentration at the start of the Industrial Revolution (1850). Sea levels were 4 to 8 meters higher than today.
Recent research by the Niels Bohr Institute
reveal that the average temperature in Greenland during the Eemian was around 8 °C higher than it is today. Nonetheless, only 10% of the Greenland Ice Sheet melted.
So, what do we learn from all this?
- The IPCC tells us that human emissions of CO2 are the Earth's main temperature regulator, but that is contradicted by the measured data from the Eemian when much higher temperatures had natural causes and were paired with lower CO2 levels
- They tell us that the Greenland Ice Sheet will melt and that sea levels will rise 20 meters. During the Eemian none of that happened with even much more warming
- They also tell us that even 1 more degree of warming would cause catastrophic unstoppable "runaway" warming. During the Eemian, temperatures were much higher and no such catastrophic runaway warming ever happened; the Earth's climate even fell back into the Weichselian Glacial Period
- They tell us that coral reefs and other ecosystems will disappear. Well, they did survive the Eemian.
Looking at the past provides us with lots of real-world, measured, scientific data that completely contradicts the IPCC hypotheses, computer models and predictions. There is no cause for alarm. There is no climate crisis
Tom van Leeuwen, September 10th, 2019.