Archive for the ‘Negative Emissions’ category

By Korey Silverman-Roati Carbon dioxide removal (CDR) will be needed, alongside deep emissions cuts, to achieve global temperature goals. The Intergovernmental Panel on Climate Change (IPCC) has emphasized that, to limit warming to 1.5oC or 2oc, in line with the Paris Agreement, global carbon dioxide emissions must reach net-zero between 2050 and the early 2070s. […]

By Korey Silverman-Roati Growing interest in using the oceans to enhance removal of carbon dioxide from the atmosphere has in turn spurred more interest in seaweed cultivation. A recent report by the National Academies of Sciences, Engineering, and Medicine (NASEM) concluded that the “ocean holds great potential for uptake and longer-term sequestration of” carbon dioxide. The report […]

Despite scientists’ dire warnings about the impacts of climate change, the anthropogenic greenhouse gas emissions that cause it continue to increase. The atmospheric concentration of carbon dioxide—the most commonly emitted greenhouse gas—is now higher than at any time in at least the last 800,000 years and likely several million years. Emissions reductions are essential but […]

By Korey Silverman-Roati and Romany M. Webb The Sabin Center today released the second in a series of white papers discussing legal issues associated with different ocean-based carbon dioxide removal techniques. Today’s paper focuses on seaweed cultivation—i.e., the growing of kelp and other macroalgae which may be harvested for food, bioenergy, or other uses or […]

By Romany M. Webb and Korey Silverman-Roati Ocean alkalinity enhancement (OAE) is one of several proposed techniques for removing carbon dioxide from the atmosphere and storing it in the oceans. As a result of natural processes, the oceans have already absorbed around 30% of all carbon dioxide emitted by humans since the start of the […]

By Romany M. Webb This week’s IPCC report is another stark reminder of the need to dramatically reduce greenhouse gas emissions to avoid climate disaster. While the U.S. has started down the path of decarbonizing its economy, there remains significant work to do, and many challenges ahead. Some sectors, including certain heavy industries and freight […]

Achieving the Paris Agreement’s goal of limiting warming to “well below” 2oC above pre-industrial levels will require an immediate and dramatic reduction in greenhouse gas emissions which must reach “net zero” around mid-century. This will likely necessitate the use of so-called “negative emissions technologies” that can remove greenhouse gases from the atmosphere to offset emissions […]

By Romany Webb Despite scientists’ dire warnings about the catastrophic impacts of climate change, the greenhouse gases that cause it continue to be emitted in substantial amounts. There is no question that deep, across the board cuts in greenhouse gas emissions are essential, but many scientists now agree that simply cutting future emissions will not […]

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This blog provides a forum for legal and policy analysis on a variety of climate-related issues. The opinions expressed here are solely those of the individual authors, and do not necessarily represent the views of the Center for Climate Change Law.

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