Well, we haven't done a formal modelling of the fiscal impact.
Our position is fairly simple. We are producing CO2 right now, and the consensus of the Intergovernmental Panel on Climate Change is that it is having an impact on our physical environment; therefore, we think we have to start attaching a price to CO2. That is the whole point of a green tax or carbon tax, which is to treat that as what's called an externality in economics, a bad thing that we're treating as free, and it's not free but actually having some sort of deleterious impact.
Secondly, however, if you put in place a green tax, as B.C. did just last week, you do it in a way that's revenue neutral. That would actually allow you to cut other taxes, which the B.C. government is doing, and effectively keep your revenues in balance going forward.
Those would be the fundamental elements of our brief.