There are trillions of potato-sized metal nodules on the floor of the ocean around the world. Some of these nodules are being explored for economic potential. A major vote by a UN body on the commercial exploitation of these minerals is planned in October 2020 (postponed from July 2020). However,...
https://www.hellenicshippingnews.com/could-we-be-farming-rather-than-mining-metals-in-the-future/