CO2 benefit from the increasing percentage of diesel passenger cars:: the case of Sweden

An efficient way to reduce CO, emissions is the replacement of gasoline passenger cars (PC) with diesel ones. Most of the member countries of the European Union have high percentages of new diesel PC registrations, however this percentage is only 7% in Sweden. In the present work, the benefit of CO2 emitted from the new PC is studied in the case of an increased penetration of diesel PC in Sweden, for several scenarios using the current and estimated future PC sales and fuel consumption (FC). The results show that total future CO2 emissions will increase significantly and can be partially controlled by the introduction of diesel PC or the replacement of heavy PC by lighter ones.