Norway is moving forward with plans to mine its continental shelf to procure minerals critical for renewable energy technologies. However, some scientists, members of civil society and even industry leaders have raised concerns about Norway’s proposal, arguing that deep-sea mining in this part of the ocean could cause widespread environmental harm.
The nation’s Ministry of Petroleum and Energy has proposed opening up a 329,000-square-kilometer (127,000-square-mile) portion of the Norwegian Sea to deep-sea mining, an area nearly the size of Germany. The region overlaps with many marine areas previously flagged by Norwegian research institutes and government agencies as vulnerable or valuable. A study by the Norwegian Petroleum Directorate (NPD), a government agency responsible for regulating petroleum resources, found that this area holds significant quantities of minerals such as magnesium, cobalt, copper, nickel and rare-earth metals. Investigators found these minerals on manganese crusts on seamounts and sulfide deposits on active, inactive or extinct hydrothermal vents at depths of 700-4,000 meters (2,296-13,123 feet).
A sliver of this proposed mining area is within Norway’s exclusive economic zone (EEZ). The rest falls across the adjoining continental shelf — the gently sloping seabed stretching out from Norway’s mainland into the ocean — in international waters beyond Norway’s jurisdiction.
However, Norway gained access to the continental shelf that borders its EEZ in 2009 after filing an application with the Commission on the Limits of the Continental Shelf, a U.N. body that manages extended access to the nations’ continental shelves. Norway’s access applies only to the seabed, not the water column or surface waters above the continental shelf.