Abstract
Tax for climate change mitigation was introduced in October, 2012. CO2 reduction effects are expected by introduced this tax, however influences for economic activities are afraid. Because introduction of a tax brings about the excess burden (Deadweight loss) of a tax. So we are necessary to argue adoptability of environmental tax by discerned the effects of CO2 reduction and economic impacts by generating deadweight loss. In this paper, we measure the CO2 reduction effects and economic impacts by intoroduced the tax for climate change mitigation with CGE approach, which is forcusing the transport firm, and private transport section.