The Sahara Desert Hasn’t Always Been a Dry, Desolate Landscape. Some Scientists See Signs It May Be Greening Again

Petroglyphs on sandstone at a national park in Chad bear witness to wildlife that once roamed the area before the continent’s water largely receded 6,000 years ago. Could it return?

🔗 Read more: https://www.smithsonianmag.com/science-nature/sahara-desert-hasnt-always-been-dry-desolate-landscape-some-scientists-see-signs-greening-again-180988098/

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