Scientific American Content | Global Follow Deep-Sea Nodules May Produce Oxygen—Raising Concerns over Ocean Mining Deep-sea rocks packed with valuable metals may also be making oxygen in the deep, dark ocean—raising new questions about the cost of mining them. https://www.scientificamerican.com/podcast/episode/deep-sea-nodules-may-produce-oxygen-raising-concerns-over-ocean-mining/ scientificamerican.com
