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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?
#Tunis
#Sudan
#Mali
#Niger
#Libya
#Egypt
#Sahara
#Algeria
#Chad
#Cairo
pred 9 urami