Perhaps I could make a couple of observations. I said at the start I wasn't going to talk about the Clean Air Act, but I am.
First of all, the question on the pace of development is really a question for Alberta. Alberta is the owner of the resource and it's really up to Alberta to decide whether it wishes to pursue that rapidly or not. There are limits to the pace at which the resource can be developed and we've talked about some of those in terms of the social issues and the labour availability and so on. It's really no more a question for the federal government to decide whether the resource should be developed quickly or not any more than it's up to the federal government to decide how quickly hydro potential in other provinces might be developed, for example.
I'll just speak from what I think is an analytical point, as opposed to a policy point.
Regulation of emissions, including greenhouse gases, but also other emissions, will create an economic incentive for companies to reduce emissions. It will also create an economic incentive for companies to invest in research and development for ways to reduce emissions, and I think that's the way one squares the circle here. It's the way you reconcile significant development of the oil sands, perhaps five million barrels by 2030, with a longer-term vision of absolute reductions in greenhouse gases. It is not impossible to reconcile the two.