Extracting minerals from the ocean floor could negatively impact biodiversity on a scale of up to 25 times greater than land-based mining, and fixing the damage would cost twice as much as extraction, a new report said on Thursday.
New Black Coral species Umbellapathes litocrada is seen in this handout photo from 2015 obtained by Reuters on October 28, 2020. NOAA Office of Ocean Exploration/Handout via REUTERS/File Photo
The total biosphere impacted by this mining in international waters alone would be up to 75 million cubic kilometres, a greater volume than all the freshwater in the world, according to the report by non-profit Planet Tracker. But this would cost between $5.3 - $5.7 million per square kilometre, compared with $2.7 million price per square kilometre to mine them, according to the report.
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