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Your questions answered: The value of trees, "black" oxygen, AI's carbon footprint

The Climate Question

CHAPTER

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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