I have to say that I don't have responsibility for the EU ETS, so I'm afraid I can't speak in detail. But I think one of the lessons, which Vicki touched on as well, has been in terms of the cap that's set. I think, as we already heard, we've had some teething troubles in phase one, where it was over-allocated, and the commission took very welcome action to ensure a tougher regime in phase two. We now have the opportunity of a review of the directive to make that further progress for 2013 and beyond. I think the key has to be to make sure that emissions trading works properly to secure real emission reductions.
Certainly, the proposals that the commission has put forward so far for that third period are very encouraging, and I would support the comment that was made about the benefits of having a central EU-wide cap. So instead of member states actually coming forward to the commission with proposals for their own cap—and the U.K. has tended to be quite stringent in terms of the cap it seeks to set for the U.K.—I think it's very useful actually to have the EU set that cap centrally and be able to make sure we're seeing an increasingly tighter cap over time, which, as you know, will help to guarantee emission reductions.