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Comments Welcome Impacts of State-Level Limits on Greenhouse Gases per Mile In the Presence of National CAFE Standards

By Lawrence H. Goulder, Mark R. Jacobsen, Arthur A. Van Benthem, Kenneth Gillingham, Paul Hughes and Eileen Tutt

Abstract

also thank the Precourt Energy Efficiency Center at Stanford University for financial support. Impacts of State-Level Limits on Greenhouse Gases per Mile In the Presence of National CAFE Standards As of the present time, 14 U.S. states have formally adopted limits on greenhouse gases (GHGs) per mile of light-duty automobiles. Previous analyses predict that these limits will yield significant reductions in GHGs. However, these studies do not consider critical factors that can imply different results. First, because of the interaction between these statelevel limits and the Federal corporate average fuel economy (CAFE) standard, this initiative gives automakers incentives to offset emissions reductions in the adopting states with increased emissions in other states. Second, the initiative induces substitutions of used cars for new cars and leads to reduced scrapping of used cars; this also counteracts the initiative’s GHG emissions reduction goals. This paper develops a multi-period numerical simulation model that accounts for these and other factors in assessing the impact of the new GHG-per-mile standards on U.S. gasoline consumption and GHG emissions. We find that while the state-level initiatives wil

Year: 2009
OAI identifier: oai:CiteSeerX.psu:10.1.1.183.7060
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