The prototype carbon fund (PCF) is apublic-private partnership whose mission is to pioneer amarket for project-based greenhouse gas emission reductionswithin the framework of the Kyoto protocol to the UnitedNations Framework Convention on Climate Change (UNFCCC). PCFseeks to show how project-based greenhouse gas emissionreduction transactions can lower the cost of compliance withKyoto, promote sustainable development, and mobilize newresources for Bank clients. Recognizing the globalenvironmental benefits of emissions reductions regardless oflocation, Kyoto allows industrialized countries and firms tooffset certain obligations through the purchase oflower-cost emission reductions (ERs) in developing andin-transition countries. This review identifies Bankcomparative advantage-related issues, as well as the issuesraised by competition between the Bank and InternationalFinance Corporation (IFC) in carbon finance.