Recent mapping of a number of raised beach ridges on the north coast of Greenland suggests that the ice cover in the Arctic Ocean was greatly reduced some 6000-7000 years ago. The Arctic Ocean may have been periodically ice free. However, the scientists are very careful about drawing parallels with the present-day trend in the Arctic Ocean where the cover of sea ice seems to be decreasing. "Changes that took place 6000-7000 years ago were controlled by other climatic forces than those which seem
Published On:	10/20/2008
Submitted On:	10/22/2008 3:28:34 PM by Frank K
Categories:	Earth Sciences and Environment

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Less Ice In Arctic Ocean 6000-7000 Years Ago