Do you honestly believe (let's say) the USA cutting all economic ties/imposing tariffs is insignificant?
Of course they can trade with the others who don't care about pollution. That doesn't mean the costs of a carbon tax don't outweigh the benefits of having economic ties with the countries that have that tax.
Of course they can trade with the others who don't care about pollution. That doesn't mean the costs of a carbon tax don't outweigh the benefits of having economic ties with the countries that have that tax.