Discovery News: The drought parching the United States is one of the worst in the nation’s history, but it hasn’t been as destructive as the drought that may have withered ancient Egypt’s Old Kingdom. Pollen and charcoal buried in the Nile Delta 4,200 years ago tell the tale of a drought of literally Biblical proportions associated with the fall of the pyramid builders.
“Even the mighty builders of the ancient pyramids more than 4,000 years ago fell victim when they were unable to respond to a changing climate,”…