Law Commons^™

Removing Carbon Dioxide Through Seaweed Cultivation: Legal Challenges And Opportunities, Korey Silverman-Roati, Michael B. Gerrard, Romany M. Webb

Faculty Scholarship

Scientists increasingly agree that carbon dioxide removal will be needed, alongside deep emissions cuts, to stave off the worst impacts of climate change. A wide variety of technologies and strategies have been proposed to remove carbon dioxide from the atmosphere. To date, most research has focused on terrestrial-based approaches, but they often have large land requirements, and may present other risks and challenges. As such, there is growing interest in using the oceans, which have already absorbed more than a quarter of anthropogenic carbon dioxide emissions, and could become an even larger carbon sink in the future.

This paper explores …

The Legal Framework For Offshore Carbon Capture And Storage In Canada, Romany M. Webb, Michael B. Gerrard

Faculty Scholarship

Averting catastrophic climate change requires immediate action to prevent additional carbon dioxide and other greenhouse gases being released into the atmosphere. However, even that may not be sufficient, with many scientists now warning that it will likely also be necessary to reduce the existing atmospheric carbon dioxide load. That could be achieved using negative emissions technologies that remove carbon dioxide from the atmosphere and store or utilize it in some way. One promising technology is direct air capture (“DAC”) which uses liquid chemical solutions or solid sorbent filters to capture carbon dioxide from the air and concentrate it into a …

Removing Carbon Dioxide Through Ocean Alkalinity Enhancement And Seaweed Cultivation: Legal Challenges And Opportunities, Romany M. Webb, Korey Silverman-Roati, Michael B. Gerrard

Faculty Scholarship

This paper explores two ocean-based carbon dioxide removal strategies – ocean alkalinity enhancement and seaweed cultivation. Ocean alkalinity enhancement involves adding alkalinity to ocean waters, either by discharging alkaline rocks or through an electrochemical process, which increases ocean pH levels and thereby enables greater uptake of carbon dioxide, as well as reducing the adverse impacts of ocean acidification. Seaweed cultivation involves the growing of kelp and other macroalgae to store carbon in biomass, which can then either be used to replace more greenhouse gas-intensive products or sequestered.

This paper also examines the international and U.S. legal frameworks that apply to …