The analysis of emissions in this paper is limited to CO2, SO2 and NOx emissions. CHA and N20 emissions, although greenhouse gases, are not considered. In terms of lobal warming simple calculations demonstrate that the emissions and associated forcing factors of CH4 and N20 in electricity fuel cycles are negligible compared to those of CO2. In order to demonstrate their relatively small impact, emission factors for SO2 and NOx are also presented All calculations are based on the 1995 UK fuel mix for electricity generation: CO2 519g/kWh, SO2 0.62g/kWh and NOx(as NO2) 1.22g/kWh.