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There are economic mechanisms for this (e.g. https://en.wikipedia.org/wiki/EU_Carbon_Border_Adjustment_Mechanism https://en.wikipedia.org/wiki/EU_Carbon_Border_

by debo_ 5mo ago

There are economic mechanisms for this (e.g. https://en.wikipedia.org/wiki/EU_Carbon_Border_Adjustment_Mechanism https://en.wikipedia.org/wiki/EU_Carbon_Border_Adjustment_Me...) but broadly, yes, it is difficult.