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“Dark oxygen” from the ocean’s abyss baffles scientists.
Mining companies want to harvest polymetallic nodules — which are rich in metals that can be used to make batteries — from the deep sea. But scientists just discovered that these so-called “batteries in a rock” might be creating oxygen through seawater electrolysis. It’s a wild revelation that poses new questions about the consequences of mining the deep sea before fully understanding what’s down there.
‘Dark Oxygen’ Discovered Coming from Mineral Deposits on Deep Seafloor
[Scientific American]
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