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And sand is becoming a precious resource. I believe it's been discussed on HN before. https://www.bbc.com/future/article/20191108-why-the-world-is-running-out
by e40 6y ago
And sand is becoming a precious resource. I believe it's been discussed on HN before.
https://www.bbc.com/future/article/20191108-why-the-world-is-running-out-of-sand https://www.bbc.com/future/article/20191108-why-the-world-is...
- njarboe 6y agoThere is plenty of wind-blown sand, which I imagine is fine for this snow-on-road use. Rough river sand is getting more scarce and smooth, wind-blown desert sand should not be used for making concrete.