HR: 11:35h
AN: U42A-05    [Abstracts]
TI: The role of carbon dioxide capture from ambient air in the portfolio of mitigation options
AU: * Kriegler, E
EM: elmar@cmu.edu
AF: Department of Engineering and Public Policy, Carnegie Mellon University, Pittsburgh, PA 15213, United States
AU: * Kriegler, E
EM: elmar@cmu.edu
AF: Potsdam Institute for Climate Impact Research, Telegrafenberg A31, Potsdam, 14473, Germany
AU: Stolaroff, J K
EM: infinity@rationalcontemporary.com
AF: Department of Engineering and Public Policy, Carnegie Mellon University, Pittsburgh, PA 15213, United States
AB: CO₂ capture from ambient air acts directly on the atmospheric CO₂ concentration, and thus provides increased leverage to control the carbon cycle. We ask the question how the increased leverage will be utilized when CO₂ air capture is added to a portfolio of classic mitigation options: increasing energy efficiency, substitution of fossil fuels, and carbon capturing and storage at point sources. It can be expected that the value of CO₂ air capture will strongly depend on its costs, the long-term climate policy target, and climate sensitivity. The coupled economy-climate model MIND1.2 allows the investigation of cost-effective mitigation policies for achieving ambitious temperature and concentration targets. We have upgraded the model with a stylized CO₂ air capture module based on the work of Stolaroff and Keith (J. K. Stolaroff, Capturing CO₂ from ambient air: A feasibility assessment, PhD thesis, Carnegie Mellon University). We use the upgraded model to explore the cost-effective use of CO₂ air capture vs. classic mitigation options for various targets and climate sensitivities.
DE: 6304 Benefit-cost analysis
SC: Union [U]
MN: 2007 Fall Meeting