Exploring abrupt climate change induced by comets and asteroids during human history

Greenland icebergs may have triggered Younger Dryas


This paper from five years ago seems consistent with the Hiawatha Impact Crater.

Some 13,000 years ago, as the last Ice Age seemed to lose its cold grip on the Earth, the temperature suddenly plunged again.

Up to now, scientists believed that the Younger Dryas cold reversal was caused by great amounts of Canadian meltwater flowing out into the North Atlantic and cooling it after an ice barrier collapsed upstream from the St Lawrence Valley.

Now the latest research indicates that it was not meltwater from Canada that triggered theĀ  Younger Dryas cooling (see Factbox). According to a new study, this was caused by icebergs and meltwater from Greenland.

Greenland icebergs may have triggered the Younger Dryas, September 13, 2013

Leave a Reply

Your email address will not be published. Required fields are marked *

Subscribe for Updates

Tax deductible donations to the Comet Research Group can be made here