What would you do with more than five million pounds of crab shells? Most people would turn their nose up, literally. This year, instead, Craig Kasberg and his company Tidal Vision will convert that massive pile into a product that, among its many uses, not only replaces synthetic chemicals but makes water cleaner. Pippa Norman reports for our #WhatWorks section. Pippa is a journalist based in Vancouver, whose work has been nominated for a National Newspaper Award and a Canadian Association of Journalists award. Published March 28, 2024. https://thetyee.ca/WhatWorks/2024/03/27/Crab-Shells-Wonder-Ingredient/