[lmpdev]

This is probably the most important comment ITT

The tricky part is how do we even begin to model that with a somewhat comprehensible parameter? Without near perfect traceability across all nations in the world, we can only use sledgehammer methods like a “plastic tax” - which you’ll find very difficult to pass outside of more developed jurisdictions like the EU

[AnIrishDuck]

The economic term for this is "externality" [1].

A pigovian tax is one solution, though it suffers from issues like the one you describe.

1. https://en.wikipedia.org/wiki/Externality