The African humid period reveals how northern Africa was dramatically wetter during the late Pleistocene and Holocene geologic epochs, when much of the Sahara desert was covered by grasses, trees and ...

Paleoclimate and archaeological evidence tells us that, 11,000-5,000 years ago, the Earth's slow orbital 'wobble' transformed today's Sahara desert to a land covered with vegetation and lakes. Aa Aa ...