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Carbon Dioxide Removal


Ocean and Coastal CDR

Ocean based carbon dioxide removal methods include ocean alkalinization or enhancement, ocean up-welling, and enhanced kelp farming. Coastal blue carbon is the carbon captured by living coastal and marine organisms and stored in coastal ecosystems, such as salt marshes, mangroves, and seagrass beds.
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Regulation of Sargassum Removal and Sinking in Florida

2026
Scholarly Work
Ashwin Murthy, Korey Silverman-Roati, Romany M. Webb
This report examines the legal landscape surrounding the collection and sinking of sargassum in and off the coast of Florida for CDR purposes.

Regulation of Coastal Weathering in Massachusetts

2026
Scholarly Work
Ashwin Murthy, Korey Silverman-Roati, Romany M. Webb
This white paper reviews the U.S. federal and state laws that could apply to coastal enhanced weathering projects in Massachusetts.

An interaction between the ITLOS advisory opinion on climate change and the maritime legislations on carbon reduction

2026
Scholarly Work
Xingguo Cao, Tengyun Chu, Sihan Zhu
This paper aims to explore the interaction between the ICJ, ITLOS and IACtHR advisory opinions and maritime carbon emission reduction legislation

Regulation of Ocean Alkalinity Enhancement in Washington State

2025
Scholarly Work
Ashwin Murthy, Korey Silverman-Roati, Romany M. Webb
This paper examines the legal framework for ocean alkalinity enhancement projects in Washington State to increase their ability to uptake carbon dioxide from the atmosphere.

Enhance Responsible Governance to Match the Scale and Pace of Marine–Climate Interventions

2025
Scientific Report
Emily M. Ogier
This comment reviews governance readiness to address risks and ensure responsible transformation and effective action for marine-climate interventions.

Seaweed Cultivation and Sinking for Carbon Dioxide Removal in Alaska

2025
Scholarly Work
Ashwin Murthy, Korey Silverman-Roati, Romany M. Webb
This paper reviews the legal framework around cultivating and sinking seaweed in Alaska for CDR purposes

Novel Marine-Climate Interventions Hampered by Low Consensus and Governance Preparedness

2025
Scholarly Work
Emily M. Ogier
A survey of 332 intervention practitioners, revealing five types and 17 sub-types of interventions proposed or deployed in 37 marine systems globally.

The European Ocean Pact

2025
Proposed Legislation
The European Ocean Pact introduces a single reference framework on protecting and leveraging the ocean's potential for Europe.

Geoengineering: the Relevance of the UN Convention on the Law of the Sea and the BBNJ Agreement

2025
Scholarly Work
Kristina M. Gjerde, Stephanie Prufer
This article explores the relevant obligations for geoengineering activities with potential impacts on the marine environment and explores what ‘due diligence’ for environmental impact assessments and strategic environmental impact assessments entail

International Governance of Ocean-Based Carbon Dioxide Removal: Recent Developments and Future Directions

2024
Scholarly Work
Romany M. Webb
This paper discusses recent efforts to regulate ocean CDR under three long-standing international agreements and discusses options for greater coherence in international governance.

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