First of all, I object to the suggestion that there's been any dishonesty on our side in this study. We've tried to take a comprehensive look at some ambitious emission reductions in the public domain to try to elevate the level of debate and to try to get away from the kinds of discussions where there is a focus on negative elements rather than looking at the overall picture.
The model we chose is a mainstream model that's been used by the federal government and, on a number of occasions, by provincial governments, including Alberta. There are a number of conservative assumptions. For example, we assumed that Canada would be going substantially further than other OECD countries in its level of climate policies. We didn't take any account of the use of forests to reduce emissions because the models were not capable of that, but that would be another potentially low-cost opportunity.
Other models exist that produce lower costs than this. And when it comes to the international reductions, we used much higher prices than are usually used. Those are all conservative elements of this work.
And frankly, I object to the suggestion that there's any attempt here to produce numbers that are not objective.