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Is seabed mining an economic necessity or a hazard?
As deep-sea miners seek international go-ahead, opponents say the environmental impact is too high.
Currently continuing testing work, the Canadian business hopes to get authorisation to start commercial mining in international waters in the north Pacific as early as the end of 2025. This move follows after 31 members of Congress wrote an open letter about deep-sea mining in December, saying that the US "must explore every avenue to strengthen our rare earth and critical minerals supply chains". "If the industry proceeds, the intensity and methods of deep seabed mining could destroy entire habitats and species," says Kaja Loenne Fjaertoft, a marine biologist and senior advisor for sustainable oceans at the WWF.
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