Thank you for saying that a package of policies is required. I totally agree with you.
Our beef, of course, with the current government is that they have said that the one policy you have to have is a carbon tax, that all the other policies are optional and every province can come up with its own policies, but they have to have a carbon tax.
When I look at the experience in British Columbia, I see it's quite contrary to what you have suggested and it is in line with the fears that Mr. Myers suggested, that is, you bring in a tax and taxpayers are worried that tax is going to be ramped up and up, and of course the rules have changed and it's no longer revenue neutral.
I have a question now for you, Mr. Bergamini and Mr. Tauvette.
You suggested that fleet upgrades have been made to improve fuel efficiency to a point where you're now at diminishing returns. What drove these upgrades? Was it a carbon tax or was it something else?