I think this is a promising avenue: https://www.technologyreview.com/2020/06/22/1004218/how-green-sand-could-capture-billions-of-tons-of-carbon-dioxide/ https:/

I think this is a promising avenue: https://www.technologyreview.com/2020/06/22/1004218/how-green-sand-could-capture-billions-of-tons-of-carbon-dioxide/ https://www.technologyreview.com/2020/06/22/1004218/how-gree...