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8min chapter
Your questions answered: The value of trees, "black" oxygen, AI's carbon footprint
The Climate Question
Deep-Sea Mining and Earth's Oxygen Origins
This chapter explores the intriguing black rocks on the ocean floor, rich in metals like cobalt and nickel, and their potential role in Earth's early oxygen supply. It balances the debate between sustainable harvesting of these resources and the environmental risks posed to marine ecosystems. Additionally, the chapter discusses the broader implications of metal sourcing for energy transitions, recycling challenges, and the upcoming COP29 climate negotiations.
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Discover
highlights
Listen to the best highlights from the podcasts you love and dive into the full episode