And this is where the whole deal breaks down, because there will never be such a thing. Nobody will be forced.
The only ones that could enforce something like this are the politicians, leaders of states that can create laws. Such laws will not come into existence, though, since that would require a global consensus because one country doing such a move alone will invariably cripple its economy. Global treaties that are supposed to be more than a stack of paper with letters, i.e. treaties that will be enforced and heeded on the other hand require the backing of industries that have an interest in such treaties coming into existence.
And industries have no interest in such a treaty. Quite the opposite. So if anything, we'll see a lot of resistance for such an international treaty taking place. Hence