Polymetallic nodules litter a stretch of ocean between Mexico and Hawaii. They contain metals, such as manganese and cobalt, that mining companies want to use for battery production. Researchers recently found that these seafloor blobs might make their own oxygen—and no one knows exactly how. Scientific American’s associate news editor Allison Parshall explains the hype behind this “dark oxygen.”

Recommended reading:

‘Dark Oxygen’ Discovered Coming from Mineral Deposits on Deep Seafloor https://www.scientificamerican.com/article/dark-oxygen-discovered-coming-from-mineral-deposits-on-deep-seafloor/

Earth’s Coral Reefs Face a New, Deadly Mass Bleaching. They Can Still Be Saved

https://www.scientificamerican.com/article/earths-coral-reefs-face-a-new-deadly-mass-bleaching-they-can-still-be-saved/ 

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Science Quickly is produced by Rachel Feltman, Fonda Mwangi, Kelso Harper, Madison Goldberg and Jeff DelViscio. This episode was hosted by Rachel Feltman with guest and associate news editor Allison Parshall. Shayna Posses and Aaron Shattuck fact-check our show. The theme music was composed by Dominic Smith.

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