Well, it's not $100 a tonne, that's for sure. But I would say that kind of number does impact your rate of return by 3% to 4%. For our shareholders at Suncor and our CEOs, it needs to be an 11% rate-of-return project in order for us to consider it. That's our threshold.
As we look forward, if you have to account for that, then either you have to do a number of other things that reduce that impact down to 1% or 2%, or you have to do some other things around productivity and the supply chain—the steelmakers and others—that will actually improve your IRR, internal rate of return, to 15% so that you can account for that cost. We think that's actually viable. Suncor's position would be that the risk around carbon pricing is somewhat less than what Mr. Leach described.