Arctic fossils indicate ice shelf is not as stable as previously thought, scientists say
https://abcnews.go.com/amp/International/arctic-fossils-ice-shelf-stable-previously-thought-scientists/story?id=112474099
by Creative_soja
Arctic fossils indicate ice shelf is not as stable as previously thought, scientists say
https://abcnews.go.com/amp/International/arctic-fossils-ice-shelf-stable-previously-thought-scientists/story?id=112474099
by Creative_soja
1 comment
“Researchers recently analyzed fossils taken from the center of the Greenland ice sheet, widely considered to be the largest annual contributor of water into the ocean. The fossils were found to have organic matter, indicating an ice-free period during the Pleistocene Epoch, about 400,000 years ago.”
“The fossilized plants suggest temperatures at Summit, Greenland, were likely about 37 to 44 degrees Fahrenheit when the ice disappeared, Mastro said. The ice was then replaced by a tundra ecosystem about 400,000 years ago. Carbon dioxide levels at that time are estimated to have been about 280 parts per million, compared to about 420 parts per million today.”
Link to the study.
https://www.pnas.org/doi/full/10.1073/pnas.2407465121