Demystifying Ocean Carbon Dioxide Removal

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The Environmental and Energy Study Institute (EESI) and the World Resources Institute (WRI) held a briefing about ocean carbon dioxide removal (CDR). Reaching global climate goals will require not only deep and rapid reductions in greenhouse gas emissions, but also large-scale removal of excess carbon dioxide from the atmosphere. While federal funding for research, development, and demonstration of land-based CDR approaches and technologies has increased significantly in recent years, the ocean also presents opportunities for carbon removal. 

The ocean covers 70% of the Earth and serves as its largest carbon sink, holding 42 times the carbon in the atmosphere. Ocean CDR—the practice of removing and storing carbon from the ocean—is garnering increasing scientific, governmental, and private sector interest. At the same time it presents uncertainties related to efficacy, ecosystem impacts, and governance, which decision-makers must understand in order to determine if and how the practice could be scaled up as a climate solution.

Panelists discussed the current state of ocean CDR, including the status of different approaches; the policy and regulatory landscape; research gaps; and the importance of responsible scaling. They also discussed how lawmakers can engage in this emerging policy arena to meet mitigation and adaptation goals.

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