| Summary: | Abstract Despite the ocean’s role in regulating the climate and providing ecosystem services, the importance of the ocean has only recently gained appropriate attention in the context of international climate change policies. This concerns the impacts of climate change on ocean ecosystems and the role of the ocean in climate change mitigation. Since impacts can be cumulative, future climate risks for the ocean and dependent human communities emphasize the need to reduce greenhouse gas emissions. Here, we make the case that assessing these impacts and their consequences for human welfare would provide not only an ethical but also an economic justification for strengthening policy responses to a substantial degree. Climate change, Ocean change, Climate policy, Ocean acidification, The social cost of carbon, Integrated Assessment Models (IAMs), Risk transition
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