Skip to main content

Greenwich Mean Time

Volume 451: debated on Wednesday 8 November 2006

To ask the Secretary of State for Environment, Food and Rural Affairs what assessment he has made of the effect on carbon dioxide emissions of putting the clocks (a) back and (b) forward. (99145)

[holding answer 6 November 2006]: Work undertaken by the Building Research Establishment for the Department indicates that putting clocks in the UK back one hour (to match Central European time) would lead to a net increase in carbon dioxide emissions from lighting, space heating and cooling energy consumption in UK buildings corresponding to around 1 per cent. of total UK emissions of carbon dioxide. The study also shows that a switch to British summertime all the year round would increase emissions by just under 0.5 per cent.