The Lieberman-Warner America's Climate Security Act: A Preliminary Assessment of Potential Economic Impacts

On August 2, 2007 Senator Lieberman and John Warner (R-VA) introduced a framework for Lieberman-Warner America's Climate Security Act of 2007. The proposal, which we refer to here as the "Lieberman-Warner" bill, calls for the United States to make substantial cuts in greenhouse gas emissions below current levels by 2050. Such greenhouse gas emissions cuts will contribute to global efforts aimed at reducing atmospheric concentrations of greenhouse gases and mitigating harm to our climate system. The most recent assessment report of the Intergovernmental Panel on Climate Change provides a scientific basis for th world's countries to take strong action to mitigate the threats of climate change.