Around how many years ago did the 'Green Sahara' period end, transforming the region into an arid desert?
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Roughly 5,000 to 11,000 years ago, the Sahara was a lush grassland filled with lakes, rivers, and diverse wildlife like hippos and giraffes. A slight shift in Earth's orbital tilt gradually altered monsoon patterns, turning this green paradise into the dry desert we know today in just a few centuries. Photo: NASA, Wikimedia Commons, Public domain.
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Source: Wikipedia (CC BY-SA)
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