I'll just briefly say that I think the work that the three ministers are doing and the fact that, coming out of yesterday's meeting in Mexico, they've agreed to create a kind of climate change group are very positive things.
With regard to setting standards in North America on fracking, we're the leaders in the technological advances we're making in terms of energy. It's not just the United States; it's Canada and it's Mexico. If we get that right then we set the standards for the rest of the world. We take those to Paris and those become the standards that the rest of the world will adopt.
As Carlo and Michael Wilson said, the danger if we don't move ahead is that we become standard takers. Here within North America we have an opportunity. We have a highly innovative culture, and pluralism is something that makes North America work extremely well to set the standards that basically set the international order for how we live.
That's the really important issue here: setting the broad standards in energy. As you say, that's an area in which we are the leaders and we can set these standards and take them to Paris.