'The water, the sand, the mixing of the sand and the water’: Trump talks nonsense on the climate

https://www.youtube.com/watch?v=8ItUW3yQc-U

FFS, Now We're Running Out of Sand - Mother Jones

We are running out of sand. No, really, and here's a chart to prove it: Now wait a second. The Sahara Desert is brimming with sand. Why can't we use that? Desert sand grains are too smooth to be useful, and most of the angular sand that is suitable for industry comes from rivers ....
https://www.motherjones.com/kevin-drum/2019/07/ffs-now-were-running-out-of-sand/

China’s Crazy Plan to Keep Sand From Swallowing the World – Mother Jones

Can a “Green Great Wall” stave off environmental disaster?....
http://www.motherjones.com/environment/2017/08/china-plants-billions-of-trees-in-the-desert/