Well, the Member is aware, Llywydd, I know, that I cannot make any comment today in relation to the M4 relief road because I'm bound not to by the rules that Governments are bound by during a by-election period. The general point the Member makes is an important one, of course, that global warming is a genuine challenge that faces the whole of the globe and that the actions that any Government makes in major investments have to be treated against the impact that they have on creating a global future for generations that come after us and make a genuine inroad into the problems that climate change poses.