Deep-Sea Mining: A New Frontier or a New Mistake?
Four kilometres down, on a stretch of Pacific seabed the size of the European Union, lie trillions of potato-sized rocks rich in the metals clean-energy batteries need. This video explains what polymetallic nodules are, why they are valuable, and the fight over who gets to mine them.
It follows the slow, 1970s origin of nodule mining and its 2020s revival, the treaty that made the deep seabed the 'common heritage of mankind', and the International Seabed Authority's repeated failure to finish a mining code - most recently at its March 2026 Kingston session. It then follows the United States' separate route: Trump's April 2025 executive order, The Metals Company's January 2026 application to NOAA, and NOAA's 9 March 2026 finding that the application is in 'substantial compliance' - a procedural step, not a granted licence, now challenged in a 30 September 2026 lawsuit.
It sets out what two real seabed trials - a 2022 industrial test and a 1979 test re-surveyed 44 years later - actually found about recovery, the case for going ahead, and why more than 40 countries are asking for a pause instead. It closes on the open question: two licensing systems, built never to need each other's agreement, now both reaching for the same seabed at once.
Educational documentary. Not financial or investment advice.
In these topics
Tags
- deep sea mining
- polymetallic nodules
- clarion clipperton zone
- international seabed authority
- the metals company
- NOAA deep sea mining
- UNCLOS explained
- critical minerals
- battery metals
- ocean mining explained
- seabed mining moratorium
- common heritage of mankind
- deep sea mining explained
- clean energy minerals
- ocean conservation
Chapters
- The prize on the seafloor
- A gold rush four kilometres down
- An old idea, a new urgency
- Whose ocean is this?
- The rulebook that never arrived
- America goes it alone
- The company betting on nodules
- What we know about the damage
- The case for going ahead
- The moratorium coalition
- A frontier without a referee
- Who decides, and what's next
Sources and credits
Original narration, artwork, score and editing assembled locally for Forwards or Backwards. No third-party footage or music; the only third-party imagery is the free-to-use photographs credited below.
Photo credits (Wikimedia Commons):
- Ferromanganese/polymetallic nodules on the seafloor, photographed by NOAA ROV Deep Discoverer: Unidentified NOAA photographer, Public domain - https://commons.wikimedia.org/wiki/File%3ADeep_Discoverer_ferromanganese_nodules_North_Atlantic_2021.png
- Location map of the Clarion-Clipperton Zone in the Pacific: USGS, Public domain - https://commons.wikimedia.org/wiki/File%3ALocation_of_the_Clarion_Clipperton_Zone.png
- NOAA map of permit/operating areas within the Clarion-Clipperton Zone (from a 1995 NOAA report to Congress; historical context for how the zone is divided into claim blocks, not the current USA-A/USA-B applications): Chas. E. Harrington, National Ocean Service/NOAA, Public domain - https://commons.wikimedia.org/wiki/File%3ADeep_Seabed_Mining_Operating_Areas_within_the_Clarion-Clipperton_Zone.jpg
- Kingston, Jamaica (seat of the International Seabed Authority), NASA ISS astronaut photograph: NASA Astronauts, Public domain - https://commons.wikimedia.org/wiki/File%3AKingston%2C_Jamaica.JPG
- Donald Trump signing an executive order, April 2025 (a different order, on the coal industry, signed the same month; usable only as a general portrait of the President signing an order, not captioned as the specific offshore-minerals order): The White House, Public domain - https://commons.wikimedia.org/wiki/File%3ADonald_Trump_2025_%28cropped%29.jpg
- The White House, Washington DC: White House (Joyce Boghosian), Public domain - https://commons.wikimedia.org/wiki/File%3AWhite_House_and_Marine_One_in_winter.jpg
- Ghost octopod ("Casper"), a real, newly-recognised abyssal species photographed by NOAA Ocean Exploration: National Marine Sanctuaries, Public domain - https://commons.wikimedia.org/wiki/File%3APMNM_-_Casper_-_New_Octopod_Species_%2830550423053%29.jpg
- Narration: Kokoro-82M
bf_emma, British English. - Imagery: generated locally, 12 environments, 72 matched states.
- Score: original procedural pad, ducked under the narration.
Primary sources
- NOAA, 'NOAA Determines TMC USA's Consolidated Deep-Seabed Mining Application is in Substantial Compliance' and 'NOAA advances review of first-ever deep seabed mining commercial recovery application' (noaa.gov) - 9 March 2026 finding, procedural not a licence grant.
- The Metals Company, investor releases (investors.metals.co) - January 2026 consolidated NOAA application, ~65,000 sq km, 619 million tonnes estimated resource; April 2025 pivot announcement.
- The White House, 'Fact Sheet: President Donald J. Trump Unleashes America's Offshore Critical Minerals and Resources' (24 April 2025).
- Earth Negotiations Bulletin (IISD), '1st Part of the 31st Annual Session of the International Seabed Authority (ISA) Council'; Oceanographic Magazine, 'No code, no permits' - Kingston, 9-19 March 2026, no finished mining code.
- Center for Biological Diversity, 'Lawsuit Challenges Trump Administration Greenlighting of International Deep-Sea Mining Exploration Permit' (30 September 2026); Courthouse News coverage of the same filing - the Eaton quote.
- marinebio.org, '40 Nations Oppose Deep-Sea Mining as U.S. Pushes Ahead' (April 2026); Center for Biological Diversity, 'Nations Meeting in Jamaica Urged to Maintain Deep-Sea Mining Moratorium' (10 July 2026).
- Nature Ecology & Evolution, 'Impacts of an industrial deep-sea mining trial on macrofaunal biodiversity' (2025) - 2022 trial, -37% density, -32% species richness.
- Nature, 'Long-term impact and biological recovery in a deep-sea mining track' (2025); University of Liverpool release (26 March 2025) - 1979 test track, 2023 re-survey.
- UN, UN Convention on the Law of the Sea (1982) and 1994 Agreement on Implementation; ISA (isa.org.jm), 'About ISA'.
- deepseamining.ac, 'Kennecott Consortium' history page - 1962 first exploration, 1974 consortium formed.
- NOAA Office of Ocean Exploration and Research, 'Newly discovered "Casper" octopod at risk from deep-sea mining' (19 December 2016) - 2016 Okeanos Explorer finding near Hawai'i, kept separate from the CCZ trial surveys.
Figures were not re-pulled within 48 hours of export; re-verify before publication if the film is held.
Not regulated financial advice.