Well, it's the same as 20 years ago, and we only have two options. There are only two kinds of policies that actually overcome the fact that you shouldn't use the atmosphere as a free waste receptacle—putting a price on carbon or regulating the carbon emissions or the technologies. We're doing a mix of these, and Ms. Hastings-Simon talked about that.
She mentioned that it's good to try to get some price certainty, so there's your rising carbon price, which we have in Canada, whether it's the output-based pricing system for industry or the pricing system for consumers. That's price certainly for investors, but the emissions cap is another way of having that certainty. The trading of permits under that cap might create some price uncertainty.
In energy environment economics, we talk about this trade-off between giving investors some price certainty or some emissions certainty. Each one has its own trade-offs. The policies are really simple. Don't let anybody fool you that there are a whole bunch of tricky policies out there. That's all it is, and we have those policies. They need to be more stringent.