Estimates of statewide and nationwide carbon dioxide emission reductions and their costs from Cash for Clunkers

► I estimate carbon dioxide emission reductions attributable to Cash for Clunkers. ► Two scenarios of vehicle usage estimate statewide and nationwide carbon dioxide reductions. ► Nationwide carbon dioxide emission reductions from Cash for Clunkers are modest. ► The environmental benefits and economic costs of Cash for Clunkers are clustered nationwide.