That's a difficult question. I'm just pointing out that Sam's "contributions" are unhelpful to solving that question.

You're limited by two prisoners and separate, sometimes antagonistic, countries. For example, we have little agreement on nuclear weapons, at best we've gotten concessions on testing, a few types of missiles, and so on. Same with current climate legislation. So getting global agreement is hard outside of the bare minimum. Most of the inner county approaches seem to be either panic, political distraction, or like Sam, regulatory capture, as they are ignoring that it means nothing if another country pursues it.

So I'd focus on what simple agreements we could get worldwide.