HC Deb 23 April 2004 vol 420 c672W
Linda Perham

To ask the Secretary of State for Environment, Food and Rural Affairs what assessment she has made of the factors accounting for the trend in UK carbon dioxide emissions since 1996. [165455]

Alun Michael

UK emissions of CO2 in 2003 were some seven million tonnes of carbon (MtC) lower than in 1996. Broadly speaking this can be accounted for by warmer temperatures in 2003 (-4MtC), greater economic output (+29MtC), lower energy consumption per unit of economic output (-26 MtC), and lower average carbon content of fuels per unit of energy consumption (-6 MtC). The figures in brackets indicate approximately the contribution of each effect, positive and negative signs indicating respectively a contribution to higher or lower emissions.