Sand Sculpture for Solar Paradise Project in Gran Canaria

Photo from Greenpeace International

We might wonder why there would ever be a sand shortage, since deserts cover more than a third of Earth’s land surface, but wind-formed desert sand is too fine for construction.

Highly valued river and lake sand contains the right-sized particles for landfill and strong concrete. Dubai, on the edge of the vast Arabian desert, imports sand from Australia. Qatar imports over $6 billion worth of sand annually.

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