Battery-Like Metals Generate “Dark Oxygen” in the Deep Ocean
We're all familiar with photosynthesis, the process by which plants use sunlight to generate oxygen. But have you ever heard of “dark oxygen”? This term is given to a phenomenon in which oxygen is produced on the sea floor without the typical process of photosynthesis. According to a recent study published in Nature Geoscience, researchers found that metal nodules on the abyssal plains of the Pacific Ocean are splitting seawater into hydrogen and oxygen.











































































