1. DECADE, 1997. 2MtC—two million tonnes of carbon. Energy and Environment Programme, Environmental Change Unit, University of Oxford, Oxford.
2. DEFRA, 2001. Digest of Environmental Statistics. Department for Environment, Food and Rural Affairs, London, HMSO.
3. DETR, 1998. English house condition survey 1996. Department of the Environment, Transport and the Regions, HMSO, London.
4. DETR, 1999. Projections of households in England to 2021: 1996-based estimates of the numbers of households for regions. Department of the Environment, Transport and the Regions, HMSO, London.
5. DETR, 2000. Climate change: The UK programme—summary. Department of the Environment, Transport and the Regions, HMSO, London.