There is a straight forward (but not easy) solution to the China problem. It's called the carbon club, and William Nordhaus won the Nobel Memorial prize for his paper on it. Germany is currently leading the charge to get one set up.

The EU has a pretty history of forcing their citizens foot the bill for lazy corporations failure to do anything in the interest of society or humanity. The most recent example was when they(Germans, EU) was pushing for a digitalization tax so that corporations could have the tax payer foot the bill for their failure to invest money into themselves rather than funeling it out. There are countless examples of this happening in institutions within Germany that used to be public and were half privatized.

Carbon tax is yet another one of these examples where the tax payer has been sold on the idea that they have to foot the bill for the big corps selfishness.

Completely absurd that these things are even presented as a solution. As for China being a problem? I think all the people that worked decades to push everything to China with complete disregard for anything share some blame?

And then at the same time the IAEA was actually supposed to be an institution to help the world forward in safe nuclear energy development.

Talking about Chinas carbon footprint, while ignoring why it's the worlds biggest polluter is kinda how we kept saying how horrible their and some other countries in the areas ocean trash pollution is while omitting that we were the ones shipping our trash there.

But yes, this is the past and now it's different, but just erasing history doesn't give a good ground for a constructive discussion.

And re: carbon club and China, Germany will never defy China. It's their biggest importer. In the end it's all rhetoric. They just recently released a statement how they want to discuss the Xinjiang issue on mutual understanding. They spent a decade promising other countries to setup a parallel remittance system, which never materialized. It's all talk and no substance

You know what those emissions in China are for right? China is the factory of the world, they build the things that we consume. So applying a carbon tax in Canada will make those goods more expensive and reduce the demand, reducing China's footprint.

A carbon tax without tariffs would not work. The big question is if Canada can impose such tariffs that locally produced low-carbon emitting products has a economical advantage over those produced and later shipped from china.