Maybe I will swing back in on that.
I think one of the things that we've certainly felt in Alberta is the cost and impacts on growth of non-carbon pricing policy. We saw Keystone XL as a prime example of that. The policies imposed on us externally have way higher cost.
To Nick's point, you have to be really careful not to assume that there is some world where Canada can just go on emitting whatever it wants, whenever it wants, with no external consequences. That world doesn't exist. If we imagine that Canada is going to take action and needs to take action, then the carbon price is the best way to do that.