I'm not sure precisely what it might mean, but in terms of our overall contribution to eventually meeting the target of 80% reductions from 2050, it would be in the area of probably minus 40 then, by 2030. It would mean in the area of minus 55 to minus 60 by 2040, and then from there on to minus 80. So what it calls for is that you can start at around stabilization to minus 5, which is what the U.S. is proposing to do, and then expect to see significant reductions build from that initial investment.
What this is not saying is that we can wait to 2020 or 2025 before we can take serious actions. For this to have any kind of impact at all, we have to invest now. It's just going to take that much time for the infrastructure to make the sorts of changes we're talking about.