Author Topic: New Study Suggests Southwest Greenland Was 6-7°C Warmer Than Today 9,000-5,500 Years Ago  (Read 238 times)

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New Study Suggests Southwest Greenland Was 6-7°C Warmer Than Today 9,000-5,500 Years Ago

By Kenneth Richard on 12. April 2021
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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 Early Holocene, and 5.5 to 8.5°C warmer than modern during the last interglacial (~130,000 years ago). This warmth was achieved when CO2 only ranged from 255 to 275 ppm.
 

It was likely during the interglacial ~400,000 years ago that northwestern Greenland was so warm the ice piled 1.4 kilometers high today melted to the ground, allowing vegetation to grow in Greenland’s Arctic soil (Christ et al., 2021). At that time, CO2 was also said to be in the “safe” ~275 ppm range.

https://notrickszone.com/2021/04/12/new-study-suggests-southwest-greenland-was-6-7c-warmer-than-today-9000-5500-years-ago/