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Carbon Dioxide Removal

Carbon dioxide removal (CDR) techniques, or negative emission technologies (NETs), are a suite of natural and technological pathways to remove and sequester carbon dioxide (CO₂) from the air. Unlike carbon capture and storage, these techniques remove CO₂ directly from the atmosphere or enhance natural carbon sinks.
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Permitting Seaweed Cultivation for Carbon Sequestration in California: Barriers and Recommendations

2022
Scholarly Work
Korey Silverman-Roati, Romany M. Webb, Michael B. Gerrard
This white paper explores the barriers to seaweed permitting for carbon sequestration in California, including a complex, costly, and time-consuming lease and permitting process.

Removing Carbon Dioxide Through Ocean Fertilization: Legal Challenges and Opportunities

2022
Scholarly Work
Korey Silverman-Roati, Romany M. Webb, Michael Gerrard
This paper explores the application of existing international and domestic (U.S.) law to ocean fertilization research and deployment.

The Legal Framework for Carbon Dioxide Removal in Canada

2022
Scholarly Work
Neil Craik, Anna-Maria Hubert, Chelsea Daku
This article provides an overview of Canada’s existing legal framework that will apply to various CDR methods as they are developed.

Removing Carbon Dioxide Through Ocean Alkalinity Enhancement and Seaweed Cultivation

2021
Scholarly Work
Romany M. Webb, Korey Silverman-Roati, Michael B. Gerrard
This paper examines the international and U.S. legal frameworks that apply to ocean alkalinity enhancement and seaweed cultivation.

Emergency deployment of direct air capture as a response to the climate crisis

2021
Scholarly Work
Ryan Hanna, Ahmed Abdulla, Yangyang Xu, David G. Victor
This paper models a wartime-like crash deployment of direct air capture (DAC) as a policy response to the climate crisis, calculating funding, net CO2 removal, and climate impacts.

Net Expectations: Assessing the role of carbon dioxide removal in companies’ climate plans

2021
Think Tank Report
Greenpeace UK
This briefing aims to help investors and others interpret and assess the feasibility of the role of CDR in companies’ climate plans.

The Legal Framework for Offshore Carbon Capture and Storage in Canada

2021
Scholarly Work
Romany M. Webb, Michael B. Gerrard
This paper provides a comprehensive analysis of legal issues associated with deploying an offshore DAC system, powered by offshore wind turbines, in Canadian waters and storing the captured carbon dioxide in sub-seabed rock formations.

Removing Carbon Dioxide Through Ocean Alkalinity Enhancement: Legal Challenges and Opportunities

2021
Scholarly Work
Romany M. Webb, Korey Silverman-Roati, Michael B. Gerrard
This paper examines the international and U.S. legal frameworks that apply to ocean alkalinity enhancement.

Hugging the Shore: Tackling Marine Carbon Dioxide Removal as a Local Governance Problem

2021
Scholarly Work
Javier Lezaun
This paper outlines some of the key local dimensions of marine CDR as currently imagined, and suggests a framework for increasing local participation in its assessment.

Fair distributions of carbon dioxide removal obligations and implications for effective national net-zero targets

2021
Scholarly Work
Kaylin Lee, Claire Fyson, Carl-Friedrich Schleussner
This paper looks at the implications that an equity perspective could have on national and regional obligations for negative emissions and the respective timings of net-zero targets.

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