great new yorker piece on this https://www.newyorker.com/magazine/2017/05/29/the-world-is-running-out-of-sand https://www.newyorker.com/magazine/2017/05/29/the

great new yorker piece on this https://www.newyorker.com/magazine/2017/05/29/the-world-is-running-out-of-sand https://www.newyorker.com/magazine/2017/05/29/the-world-is-r...