Sunday, July 15, 2007

Ice Didn't Melt on Greenland in Historical Warm Periods

Scientists probing a glacier on Greenland have recovered the oldest DNA ever found. At a depth of 1.2 miles they found DNA of butterflies, spiders, trees and other plants, proving that the Greenland of 450,000 to 900,000 years ago was much warmer than previously thought.

They point also to the fact that during the last interglacial period, about 116,000 years ago, temperatures on Greenland were a full 5C (9F) higher than today, and the glaciers did not completely melt.

The deepest ice core studies, done in Antartica, show that the temperature varied by as much as 15C (27F) over the last 800,000 years.

1 comment:

Janus Torrell said...

I can barely remember my doctor appointments, if I have to keep track of hundreds of thousands of years ago or something....

aghh migraine.