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 ...

Here’s what you’ll learn when you read this story: Though East Africa used to be more of a savanna than a desert, it has dried out over the millennia. With less water in the lakes, especially Lake ...

Along the dry shores of northern Kenya, a long turquoise lake quietly records the tug of deep forces. Lake Turkana looks peaceful from the surface. Yet as its waters have risen and fallen with ...