Study of ancient Arctic temperatures could predict how Greenland ice will melt
Researchers studying ancient ice from Canada’s Arctic say the samples reveal new information on what climate change could do.
The ice cores were drilled to a depth of a few hundred metres on Ellesmere Island in Nunavut and were saved by an Alberta university when the program that preserved them shut down.
Scientists from the University of Ottawa examined the samples and concluded that temperatures in the early Holocene Epoch between 8,000 and 11,000 years ago were up to five degrees warmer than earlier thought.
That means temperatures not long after the end of the last ice age were warmer than they are now. By examining the effect those temperatures had on the Greenland ice sheet then, the scientists were better able to predict how fast Greenland’s current ice cover will melt in the future.