You're not able to tell us which countries you're actually comparing us to when you say that we're going to be among the strongest in the next five years.
Just shifting gears for a second, can you tell us, because you've often spoken about trading systems—it's a specific question, but you've had many months now to get on top of this—in your view, how effectively can a domestic greenhouse gas trading system work? How well can it function in the absence of hard, absolute caps for reductions in greenhouse gases?