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Concern about global climate change has elicited responses from governments around the world. These responses began with the 1997 Kyoto Protocol and have continued with other negotiations, including the 2009 Copenhagen Summit. These negotiations raised important questions about whether countries will reduce greenhouse gas emissions and, if so, how the burden of emissions reductions will be shared. To investigate these questions, we utilize environmental Kuznets curves for carbon emissions for the G8 plus five main developing countries. Our findings raise doubts about the feasibility of reducing global carbon emissions and shed light on the different positions taken by countries on the distribution of emissions reductions.The authors express thanks to Roger E. Meiners, Jeffrey Pompe, Jerry Slice, Robert D. Tollison, two anonymous referees, an associate editor of this journal, and the editor of this journal for helpful comments on earlier drafts. Any remaining errors are our own.

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