Drought, Climate Change Ended Egypt’s Pyramid-Building Era
Ancient pollen and charcoal preserved in deeply buried sediments in Egypt’s Nile Delta document the region’s ancient droughts and fires, including a huge drought 4,200 years ago associated with the demise of Egypt’s Old Kingdom, the era known as the pyramid-building time.
“Humans have a long history of having to deal with climate change,” says Christopher Bernhardt, a researcher with the U.S. Geological Survey. “Along with other research, this study geologically reveals that the evolution of societies is sometimes tied to climate variability at all scales – whether decadal or millennial.”
Read more: http://www.laboratoryequipment.com/news/2012/08/drought-climate-change-ended-egypt%E2%80%99s-pyramid-building-era
