Somewhat related, these people are turning glass to sand from recycled bottles. https://www.tv20detroit.com/news/national/turning-recycled-glass-into-sand-coul

Somewhat related, these people are turning glass to sand from recycled bottles. https://www.tv20detroit.com/news/national/turning-recycled-glass-into-sand-could-be-key-to-protecting-coastlines https://www.tv20detroit.com/news/national/turning-recycled-g...