How To Protect The Ocean · Aug 19, 2026 · 22:24
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Why would someone who watched one deep-sea mining company collapse go back and try it again? That's the question at the center of this episode, and it's not hypothetical. It happened, with the same industry, some of the same licenses, and the same person at the center of it: Gerard Barron, now CEO of The Metals Company (TMC), one of the most prominent and best-funded companies pushing to start commercial deep-sea mining today. This isn't framed as an accusation against Barron specifically. It's a documented sequence of decisions, and by the end, you can decide for yourself what the motive looks like.
Before TMC, Barron was an early investor and promoter behind Nautilus Minerals, a company that pursued seafloor mineral deposits off Papua New Guinea. Nautilus raised hundreds of millions of dollars, including investment from the PNG government itself, before its costs spiraled, it was delisted from the Toronto Stock Exchange, and it filed for bankruptcy in 2019. Barron reportedly sold his shares years before the collapse, walking away with a return as high as $30 million, while PNG's government and environment were left holding the damage. Years later, people connected to Nautilus, including Barron, regrouped as Deep Green, which became The Metals Company, and picked up exploration rights in the Clarion Clipperton Zone that had once belonged to Nautilus.
This episode traces that arc from Adstream to Nautilus to TMC, including TMC's push to trigger the ISA's two-year rule, its more recent pursuit of a US mining permit outside the International Seabed Authority process entirely, and Barron's consistent argument that mining the seabed is less environmentally damaging than mining on land. Whether that comparison holds up, and what it means that the environmental cost of Nautilus's failure barely factors into how Barron talks about it now, is the thread running through the whole story.
Takeaways
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Episodes: How To Protect The Ocean