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Wednesday, April 8, 2015

The Lakes Of Ubari Sand Sea

The Ubari Sand Sea is a vast area of towering sand dunes in the Fezzan region of south-western Libya. But 200,000 years ago, this was a wet and fertile region with plenty of rainfall and flowing rivers.
These rivers fed a vast lake in the Fezzan basin called Lake Megafezzan. During humid periods the lake reached a maximum size of 120,000 square kilometers. Climate change caused the region, a part of Sahara, to gradually dry up and between 3,000 to 5,000 years ago, the lake evaporated away into thin air.

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