The Great Wall of the Sahara

What can we do with all that sand?

Desertification (the extreme deterioration of land in arid areas due to loss of vegetation and soil moisture resulting from human interference and climate variations) continues to displace many of the peoples of Saharan Africa.

Architectural student Magnus Larsson explains his plan to transform the harsh Sahara into a habitable, sustainable environment. His solution: turn the shifting sand into a solid sandstone mass capable of greening, using bacteria and the sand itself. The sandstone wall would extend 6,000 km (over 2,300 miles) across north Africa.

Here’s the plan.

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