Climate Change

I am grateful to the hon. Gentleman for that point, and I agree with his analysis. If we regard climate change as a new and additional problem, we need new and additional resources to tackle it. In that regard, I do not understand fully how the figure of 10 per cent. has been arrived at. I know that the Secretary of State wants to be rigorous, but it seems a suspiciously round number. How can we know that 10 per cent. will be the proportion of the aid budget that is relevant for ever and a day? I would like a more rigorous basis for that number. I believe that that must be part of the Copenhagen agreement. Unilateral commitments by individual countries will not lead to the necessary certainty of funding. Various mechanisms are already on the table at Copenhagen that might result in a flow of funds, and it is very important that we establish a deal in that regard. That will be one of the central tests of whether any agreement can stand up to the ambitions that we have for it.