Climatic change and economic development: equity rules

This article deals with alternative equity rules in the allocation of carbon emissions among countries. It is composed in two parts. The first one provides a discussion of such rules which enlightens their key characteristics. The second part proposes some calculations whose aim is to evaluate the implications of a strict egalitarian rule. Although the changes in emissions and key indicators implied by such a rule are large, implementing an emissions trading regime strongly helps both the attainment of the target and development paths in poor countries