Ancient Sahara was once a green land with rivers and lakes. Now, a new cave discovery shows this humid period ended suddenly.
The Sahara is the world's most famous desert, a land of rolling dunes through which camel caravans once roamed from Marrakech to Timbuktu and beyond. At roughly 3.3 million square miles, and occupying ...
The Sahara Desert has expanded by about 10 percent since 1920, according to a new study conducted by University of Maryland researchers. This represents roughly an area the size of South Dakota being ...