Unless we\u2019re relaxing on it at the beach, or kicking it out of our shoes, we probably don\u2019t think too much about sand. But that doesn\u2019t mean it isn\u2019t important. Sand is a vital ingredient in concrete. And glass. And asphalt. It makes our modern, urban life possible. And our hunger for it is causing more and more trouble.
\n\nVince Beiser, author of \u201cThe World in a Grain: The Story of Sand and How It Transformed Civilization,\u201d explains why sand matters, and how the quest to extract more of it is shaping the world. \xa0