The projects are disparate—boosting the efficiency of a gas-fired power plant, trapping methane from landfills, building a hydroelectric dam, harnessing wind energy. Yet they have a couple of things in common: All were chosen last month for inclusion in the U.S. Initiative on Joint Implementation (USIJI), a voluntary program to promote North-South cooperation in reducing greenhouse-gas emissions. And all are rooted in Latin America, a popular venue for such projects. Under the USIJI, U.S. companies and organizations help finance and carry out efforts in developing countries to reduce greenhouse emissions. They often do so on the expectation they’ll get credit for those reductions if mandatory greenhouse curbs are one day adopted. How confident they can be in that expectation, however, is... [Log in to read more]