A group of scientists will later this year deploy deep-sea landers to test whether metallic rocks on the ocean floor do in fact produce oxygen. The claim, made in 2024 by British marine ecologist Andrew Sweetman, has been criticised by the deep-sea mining industry, which wants to harvest the nodules to extract precious metals for car batteries and other products.
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The Bright Side: Researchers to test whether deep-sea rocks produce ‘dark oxygen’
