Madam Speaker, I thank my colleague, whom I really like, for his question.
I think the Conservatives would probably have preferred a tax, because a tax has one benefit that this type of regulation does not have: It generates revenue that enables the government to make the policy more progressive. That is exactly what they did with the carbon tax, which is not perfect but does send money back to some households.
The Conservatives are always whining about the carbon tax, saying it does not work. That forces the government to use other types of measures that do not generate revenue and are even more regressive.
I have been teaching pretty much all my life, and, if my colleague does not appreciate my professional conditioning, I will forgive him. However, I think he might well benefit from an economics course.