Ancient ice: drill cores tell of Arctic climate thousands of years ago
In the 1980’s scientists drilled down more than a kilometre into an Arctic ice cap. The resulting core samples date back to the Holocene period ranging up to 12,000 years ago.
What scientists have now discovered using new technology to analyse the cores is that the Arctic was several degrees warmer on average back then, than it is now.
Glenn A Milne (PhD MSc) is a co-author of the research study. He holds a Canada Research Chair and is a professor in the Department of Earth and Environmental Sciences at the University of Ottawa.
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