I agree entirely with what my hon. Friend says, which is why I am opposed to the Opposition's proposals to—I think—put VAT on domestic flights. We have got to be very clear about this: the fact is that people are going to travel. Indeed, there is no possibility whatever of trying to restrict access to airlines now, in a modern world where people want that access. I think that the right way of dealing with the issue, as my hon. Friend rightly implies, is to deal with it within the European Union emissions trading system. It allows us to bring aviation within that system, which we will do from 2011 onwards, and it allows us therefore to move in concert with other countries. If we end up penalising our passengers in this country, it will do us no good at all.