Different scenarios for achieving radical reduction in carbon emissions: A decomposition analysis

This paper introduces the method of decomposition analysis, and briefly discusses how it has been used in relation to patterns of energy consumption. It then uses decomposition analysis to discuss two radically different scenarios of UK energy use through to 2050, both of which result in a 60% reduction in emissions of carbon dioxide. The ratios of the decomposition analysis are discussed in relation to the social and economic drivers of energy use, and the kinds of changes in these drivers which would be necessary to bring the ratios about. In this way decomposition analysis is shown to be a useful technique both to generate quantitative scenarios of this kind, and to cast light on the socio-economic conditions which they imply.