A dynamic-recursive general equilibrium model ICES of FEEM was employed to evaluate the alternative post-Kyoto targets and instruments of GHGs reduction for Annex I and Annex II countries. A special focus was made on assessment of potential benefits from emission trading between the EU and FSU countries as their marginal abatement costs considerably vary. The model was extended by incorporating emission trading at sector level to involve certain sectors into domestic and/or international CO2 trade. Several conventional air pollutants like NOX, CO, NMVOC, PM2.5 and PM10 were added to the model database to estimate how the reduction of GHGs would simultaneously alter emissions of these pollutants that have deleterious effects on human health and the environment.