Tropical rainfall shifts resulted in greener Sahara

Six thousand years ago, the Sahara — today the world’s largest nonpolar desert, stretching over an area larger than the contiguous United States — was dotted with lakes and vegetation. Rock paintings from that time depict a much wetter landscape, and show elephants, hippos, antelope and many other animals living in the region.

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Adityarup "Rup" Chakravorty

Chakravorty is a postdoctoral researcher studying herpesviruses by day, and a freelance writer once the sun goes down.

Friday, April 21, 2017 - 06:00