Sand... selling it to the Arabs?

We need not go to the beach to be surrounded by sand - our cities are essentially giant towering sand castles disguised in concrete.
I liked this line from a BBC article on the importance of sand, and the amount that we are getting through.
Sand is not all the same, and different grades are needed for construction than one might find on a typical beach.

Image: Alan Parkinson, Wells next the Sea dunes

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