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Re:Climate change: IPCC report is 'code red for humanity' by kmonsen on Monday August 09, 2021 @05:24PM (#28122488)
So it's easy if all countries agree. If that is not the case you need to find out how much carbon from the ground was used in each item at your border. At that points it becomes rocket science?
Re:Climate change: IPCC report is 'code red for humanity' by ZeroGravitas on Tuesday August 10, 2021 @03:01AM (#28125869)
You just have to add a country wide tariff until they implement a carbon fee. Gives them the option of disadvantaging all their exports or joining a global collaboration to meet goals they actually agree with and will benefit from as long as everyone does it together.

As I said, look at what the more sensible countries are doing today and you'll see what we all should have been doing 20 years ago. No magical technology required:

https://www.reuters.com/business/sustainable-business/eu-pro...

Not simple, but still politics rather than technical in nature.