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This report distills the potential scale of carbon dioxide removal (CDR), expected costs, risks, co-benefits, and areas of research needed for seven ocean CDR approaches. It proposes an overall approach centered on informed and responsible development and deployment of ocean CDR that balances the urgency of emissions reductions against the environmental and social risks of ocean CDR, including halting development where risks outweigh expected benefits.
Lebling et al. (Tue,) studied this question.