I really like the carbon tax in Canada, because the money collected from it goes back to individual people (I got it deposited in my account automatically through my tax account). That means they're taking money from polluters and re-distributing it to citizens, i.e. as a bit of compensation to the people who are harmed by the pollution. It's very rare that the government does something useful, but this is one of those rare times, possibly the only one I know of. As a libertarian, I'd like to see this form of taxation - taxing businesses that do harm and re-distributing it to those harmed - done for more kinds of harm than just pollution. It's the only kind of taxation that real libertarians support, and anyone who is opposed to it (notably, the conservative leader) isn't a real libertarian.