The Government are always happy to consider any proposals on these issues from any of the Opposition parties. If the hon. Gentleman examines the heat and energy saving strategy, he will see that it includes options that are not dissimilar to his proposal. As I have said, we believe that we need much greater drive and much more co-ordination. We have learned from many of the programmes that will come on stream in the autumn. The community energy saving programme will enable us for the first time to deal with the areas in greatest need, house by house and street by street. It will give us a basis on which to introduce programmes that will make the whole population energy-efficient over the next couple of decades.

We are very clear about the fact that by 2015 every cavity and loft that it is appropriate to insulate will have been insulated, and 7 million homes will have had a complete eco-makeover by 2020. That is a very positive programme. We will continue to keep everything under review. We need to do as much as we can, because the emissions from our homes constitute about 27 per cent. of total carbon emissions. We absolutely must get to grips with this sector. We shall need more co-operation and involvement on the part of the public at large, and I hope that all parties will play their part in helping that process.