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Scientists with the US Geological Survey (USGS) and the University of Pennsylvania expected that they would find less wetland pollen, an indicator of vegetation, and more deposits of charcoal, the leftovers from fires, in buried sediments from times of drought. USGS reported that they found exactly that in four different periods up to 6,000 years ago.
Story: Megan Gannon, LiveScience | Photo: Benjamin P. Horton , University of Pennsylvania
Read more history news at http://www.ablogabouthistory.com/
2012-08-21 13:38:43
Source: http://www.ablogabouthistory.com/2012/08/21/pollen-analysis-reveals-ancient-egyptian-climate/