Treasures of the Clarion-Clipperton Zone

This episode is sponsored by Isembard, the industrial base for the West. If you want to own and operate a factory in Britain, America, Germany or France, email franchise@isembard.com and go reindustrialise the West.

No guest makes it through the airlock this week, which is fortunate because Tom has brought a better visitor: pictures of potato-sized black lumps from the bottom of the Pacific. Calum keeps finding him in the sitting room gazing at manganese nodules. Tom would prefer the real thing. Our hosts set out to explain why the metals embedded in those improbable objects matter to every magnet, battery, submarine, missile and wind turbine Britain hopes to build.

The story begins with a message from Queen Victoria that took nearly seventeen hours to crawl across the first transatlantic cable. Its failure started a quarrel between Wildman Whitehouse, who wanted to solve the problem with more voltage, and the future Lord Kelvin, who wanted to understand the ocean. That quarrel opens a path for the sickly naturalist Charles Wyville Thomson, his deep-sea dredges and a succession of Royal Navy vessels culminating in HMS Challenger: a 200-foot corvette stripped of fifteen of its seventeen guns and refitted as a floating laboratory. Four years, tens of thousands of specimens and thousands of new species later, the expedition has found the deepest known point in the ocean and hauled up strange, metal-rich nodules wrapped around teeth, bones and fragments of sponge. The Victorians went looking for a cable route and discovered a resource frontier.

A century later, Malta’s Arvid Pardo declares the seabed beyond national jurisdiction the common heritage of mankind. The principle becomes an international regime, complete with a proposed UN mining enterprise, compulsory technology transfer, Ronald Reagan’s refusal to sign and, eventually, the International Seabed Authority. While that system spends decades debating a mining code, China becomes what the hosts call an electrostate: a country whose command of critical-mineral supply chains gives it the geopolitical leverage that oil once gave petrostates. The environmental question is real. Mining machines are giant underwater Henry Hoovers, sediment plumes do not respect claim boundaries, and the nodules are habitat for sponges, corals and the ghostly “Casper” octopus. But leaving the seabed untouched does not make the mineral demand disappear. It only moves the damage out of sight.

Britain now occupies a peculiarly Br