iswungmyfierysword

What specific, known market failures cannot be effectively addressed with carbon pricing alone?

Methane is also the problem and needs to be addressed, along with other greenhouse gases besides carbon dioxide (there are several others). As for the second part of your comment, think about it: if you get paid $x to remove a tonne of ghgs and then have to pay $x to emit ghgs then it's a wash - except you're out a bunch of money for inventing the tech and starting those businesses. Practically, if you could design the tech to remove ghgs, you wouldn't need to produce any extra to stay in business, there are already a lot of emissions you could scrub for nearly eternity.

If you earned a nickel for every time you heard the phrase "job-killing carbon tax" how many tonnes of carbon could you emit in 2022?

But seriously, I know you're not in politics, but if you could offer advice to federal political parties' about how to talk about carbon pricing in a way that appeals to their base without neutering the political chances of carbon pricing, what would it be?

Are there any countries that currently implement border carbon adjustments? What lessons can be taken from their experiences? Are such policies trade rule proof?

Canada is consistently among the world's top 10 emitters on both absolute and per capital basis, and it's combined historical emissions are the fourth highest among all countries. That's not exactly negligible; although if other countries' future emissions rise relative to Canada (which would be bad), then maybe it's emissions would be negligible by comparison.