Thursday, August 14, 2008

Green Sahara!

http://www.latimes.com/news/science/la-sci-sahara15-2008aug15,0,3774647.story?page=1

Sahara was green for a while - between 12000 and 8000 years ago..
This was because, a wobble in the earth's orbit made the rains in Africa move north for some time.

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