Thank you.
Certainly the cap and trade scheme, through the EU ETS, has helped with that, although I think, as you heard from my testimony, the U.K. has actually been a net purchaser of credits. But again, as I said in my testimony, the U.K. has introduced a lot of measures over the last 10 years or so and has targeted energy efficiency as a sort of win–win–win, in terms of energy security, in terms of reducing emissions, but also in terms of saving money.
Going back to a comment that Ms. Pollard made earlier on, she talked about the policy lag. I think the experience we've had in the U.K. has been that we came out with our climate change program originally in 2000, reviewed it in 2006, and found that the emissions reductions we had predicted in 2000 weren't actually being realized to the extent that we hoped they would be, and therefore introduced new measures in 2006, again to help us towards our 2010 targets.
But certainly in the area of energy efficiency we've seen some good progress, and the work on the emissions trading scheme has helped to complement that in terms of additional emissions reductions.