Canada

I will say that the carbon taxes made a pretty major difference to my workplace - it pushed up the replacement of our building boiler by a number of years, and switched it to natural gas instead of diesel. Not great objectively, but a marked improvement and the carbon tax was a major factor.

We should have put in laws to limit vehicle size and fuel economy, not leave it up to consumer fashion.

Fixing emissions requirements! I drive a 2 seater compact pickup with a 4 cylinder engine, it gets 8-9L/100km depending on the season and conditions. That's as good as some modern sedans, and better than ANY pickup on the market. But no one makes a 4 cylinder compact pickup anymore because emissions limits are calculated partly by the footprint of the vehicle.

It's far too late now but this whole truckzilla problem could have been stomped over a decade ago with intelligent policy. I strongly suspect that we will not get any intelligent policy today, particularly when the intelligent solution is both expensive and counter to industry.

The idea didn't fail because it's inherently flawed. Taxing carbon could easily work, so could restricting activity. Neither is going to meaningfully happen in a resource-based colonialist country.

Holy crap, it is literally a do-over. What in the world... Alberta to propose southern route for new West Coast pipeline, sources say

That opposition, as well as numerous environmental challenges, prompted the Liberal government of Prime Minister Mark Carney to try to persuade Alberta to change tack and consider building a pipeline that largely follows the right-of-way for the Trans Mountain Pipeline from Edmonton to southern B.C.