EU is about 7.5% of global emissions, I'd call that a lot more than a drop. Also, one of the "main areas of action" here is "carbon duty on certain imported goo

EU is about 7.5% of global emissions, I'd call that a lot more than a drop. Also, one of the "main areas of action" here is "carbon duty on certain imported goods", which is quite close to what you're asking for.