The dispute over deep-sea mining has been one of those diplomatic standoffs that doesn’t immediately make the front pages; it’s been quiet, technical, and all of a sudden impossible to ignore. A pause or moratorium on mining the ocean floor has been endorsed by forty-three governments, a number that has continued to rise this year virtually unnoticed by anyone outside the conservation community. After Malawi’s earlier action, Kenya and Madagascar joined the Our Ocean Conference, and the math began to resemble a real geopolitical split rather than a fringe campaign.
The G20 is directly affected by the split. A few member states are working to complete a mining code that could allow for commercial extraction within the year by sponsoring exploration contracts through the International Seabed Authority. Others, France being one of the more outspoken, have publicly demanded a halt, claiming the science is just not yet complete. Small-scale fishing communities thousands of miles away from any seabed mining site, European lawmakers concerned about carbon storage, and Pacific Island nations whose waters would serve as the testing ground are forming an odd alliance on the opposition side.
An excellent illustration of how far this discussion has spread from its initial audience is Pakistan. The Pakistan Fisherfolk Forum stood in the coastal district of Thatta on June’s World Oceans Day and called for a worldwide moratorium, using the same language as lawmakers in Brussels and environmentalists in Geneva. The group’s general secretary, Saeed Baloch, framed it more as a livelihood issue than an environmental abstraction, referring to fishermen as “custodians of the oceans,” concerned about the ocean floor being exploited as the next frontier for extraction. It’s a phrase that keeps coming up in a variety of nations, almost like a script. Perhaps it was.
Observing this develop, it’s remarkable how little the debate has evolved since the initial parliamentary declaration on a moratorium first surfaced in 2022. The numbers supporting it have simply continued to rise. Back then, scientists warned that mining the deep seabed could destroy habitats and interfere with ecological processes for centuries.
The warning is nearly the same today, but it is no longer primarily made by scientists. The industry responds by claiming that these minerals—nickel, cobalt, and manganese—are crucial to the battery supply chains driving the energy transition. The urgency case has been undermined in a way that mining proponents probably didn’t foresee, as next-generation batteries that require fewer of these metals have entered the market sooner than anticipated.
This is actually decided at the next round of meetings of the International Seabed Authority, which takes place in July. It is the body in charge of overseeing an industry that hasn’t officially begun yet and waters that don’t belong to any one country—the so-called “common heritage of humankind,” which sounds lofty on paper but is put to the test in a room full of rival mineral interests.
It is genuinely unclear if the moratorium camp can turn growing numbers into a legally binding pause. Although forty-three nations is a significant number, it does not represent the majority of ISA members, and sponsoring states with active exploration contracts are not abandoning years of investment due to a declaration. However, the burden of proof appears to have changed. Deep-sea mining firms dominated the story five years ago. They are now the ones giving their own explanations.
