I can answer that question directly. The Conservatives took an entirely different approach in opposition. In our 2001 environment manifesto, the then Conservative Opposition called for a vehicle excise duty to be based on air pollution and vehicle emissions rather than just carbon dioxide. None the less, Gordon Brown went ahead with the scheme unaffected by that advice. That is the direct answer to the right hon. Gentleman’s question. Ministers do not give many direct answers, but that is a model example of one.