A vast mineral wealth is stored thousands of meters deep in the Pacific Ocean. Known as the Clarion-Clipperton Zone, the area has a gigantic collection of polymetallic nodules, rocks full of crucial metals such as nickel, cobalt, manganese and copper, essential for the manufacture of batteries, electric vehicles and other equipment for the global energy transition.
The estimated value of these resources reaches US$18 trillion, consolidating the region as one of the largest mineral deposits in the world and attracting the attention of governments and mining companies.
Details about resources found in the Clarion-Clipperton Zone
Located between Hawaii and Mexico, the Clarion-Clipperton Zone encompasses a vast portion of the Pacific Ocean. There, billions of tons of polymetallic nodules are dispersed across the seabed, at an approximate depth of four thousand meters.
These nodules were formed over millions of years and contain minerals considered strategic for the world economy. Among the main elements discovered are:
- Nickel: mainly used in batteries for electric cars.
- Cobalt: improves battery performance and useful life.
- Manganese: applied in the production of metallic alloys and in the steel industry.
- Copper: fundamental in electrical and electronic systems.
Experts indicate that the volume of these minerals at the site may exceed the reserves already known on land, especially in nations with a strong mining tradition. This positions the region as a promising alternative to meet expanding industrial demand.
Why the search for these minerals gains so much relevance
Increasing electrification and the expansion of renewable energy generation have drastically boosted demand for metals considered critical.
The accelerated production of electric vehicles, energy storage systems and infrastructure for electrical grids increases the shortage of raw materials that are not always found in sufficient volume in onshore mines. Thus, underwater deposits appear as a potential supply for part of this future demand. However, economic exploration in deep waters still requires technological developments and the establishment of international standards for the activity.
Environmental effects generate apprehension among scientists
Despite the significant economic potential, mining at great ocean depths has been the target of severe criticism from the scientific community.
Experts warn that removing the nodules could cause irreversible damage to underwater ecosystems that are still little explored. Due to the slow evolution of these environments, any change can take hundreds or even millennia to be corrected.
Among the main dangers highlighted are:
- Creation of extensive sediment clouds, harming marine organisms over large areas.
- Annihilation of crucial habitats for species that reside directly on the nodules.
- Emission of noise pollution and vibrations that can disorientate fish and marine mammals.
- Disappearance of microorganisms vital for the balance of biological cycles in the deep ocean.
Given this, many researchers argue that commercial exploitation should only progress after more detailed environmental studies and the implementation of truly effective protection mechanisms.
Rise of a geopolitical dispute over strategic minerals
In addition to ecological concerns, the search for resources in the Clarion-Clipperton Zone also carries significant geopolitical implications.
Currently, the concentration of processing and supply of strategic minerals for technology is in the hands of a few nations. The prospect of exploring underwater reserves attracts the interest of several governments, which aim to reduce foreign dependence and reinforce security in the supply of these inputs.
Simultaneously, the discussion is intensifying about the regulations that will govern the exploitation of these resources and the way in which the economic gains will be shared.
The future of deep-sea mining remains uncertain
Although there is considerable economic interest, deep-sea mining activity has not yet been approved to occur on a large scale.
Negotiations at an international level continue to take place, seeking to establish standards that balance the use of mineral resources with the conservation of oceanic ecosystems.
While corporations push for regulations that would make it possible to begin commercial exploration, researchers and environmental groups are calling for more studies before any final permission is given. The outcome of this discussion could shape not only the fate of underwater mining, but also the balance between technological progress, energy security and the protection of the oceans in the decades to come.
