You'll remember that a number of these organizations have been very clear that, first of all, I don't think we have a continental energy plan. It's a supply issue, as you mentioned, that's really at work.
Commenting on that, groups like the Conference Board and the council of CEOs have said, look, that's part of the reality of energy that we face. But part of it is how do we deal with the environmental obligations along the way, including greenhouse gas emissions. You can't decouple these issues; they have to be coupled together.
Business recognizes that. Frankly, we'd prefer to have one regulatory mechanism across the continent because of the nature of the trading regimes that we have. Almost half of the assets of EXCEL companies are in the United States, so having one regulatory approach makes sense. That's why I said in my opening remarks that we think the push to get the United States into the protocol in a more formal way is desirable. What we don't need is a lot of fragmentation.
I think you're absolutely right to link the energy and climate change issues together. I don't think you can decouple them.