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Predicting the Impacts of Mining Deep Sea Polymetallic in the Pacific Ocean

This review represents an analysis of literature addressing the predicted and potential impacts of mining deep sea nodules in the Southwest, Central, and Northeast Pacific. More than 250 scientific and other articles were examined to explore what is known — and what remains unknown — about the risks of nodule mining to Pacific Ocean habitats, species, ecosystems and the people who rely on them. The report details scientifically established risks, including those related to the lack of knowledge surrounding this emerging industry.

Existing environmental management approaches relevant to deep-sea mining

Deep-sea mining (DSM) may become a significant stressor on the marine environment. The DSM industry should demonstrate transparently its commitment to preventing serious harm to the environment by complying with legal requirements, using environmental good practice, and minimizing environmental impacts. Here existing environmental management approaches relevant to DSM that can be used to improve performance are identified and detailed.

The Cook Islands (South Pacific) experience in governance of seabed manganese nodule mining

The Cook Islands (CI), South Pacific, has one of the highest ratios of ocean to land area of any ocean island state in the world. Within it's EEZ exist abundant resources of seabed manganese nodules, thought to be the fourth richest resource of its type in the world, with a potential theoretical monetary value of c. $10 trillion US. The largely hydrogenetic nodules are rich in Ti, REE, Mn, Co and Ni. Economic studies suggest that a single twenty year-long mining operation could generate c. 150 jobs directly supporting 15% (c. $43M US) of the CI GDP.