So you can't give us a dollar cost? I mean, it must cost more money per year given that you're trying to reduce greenhouse gases than if you weren't. At least in upfront costs, I know there's a payback down the road, but initially there has to be some expenditure to achieve this. You can't give us an estimate of how much...?
The reason I'm asking this is that I think it's a good thing to know for its own sake, but I'm also interested to know whether the ongoing fiscal restraint is going to impact your achievement of this target. It does cost money up front to hit this target, and now there's less money. Is that going to impede your ability to achieve this target by 2020?