See the wiki entry above - it’s split fairly evenly between countries that have banned diesel/petrol and those that have done it via specifying zero emissions - uk is not alone in this approach. Both of which effectively mean, as it stands, that any ice vehicles are banned from the dates that those countries have set.
I guess if they can get ice to zero emissions before then things might change, but it seems unlikely.
I’m not saying I agree with anything, but it’s fairly obvious that worldwide the ice is at an end without some fairly dramatic developments.
Just because we a not alone does not suddenly make our approach sensible.
It doesnt matter is someone got ICE to zero emmision. We have banned them, So who is going to try? Where is the incentive? The existing global fleet of cars isnt suddenly going to disappear.
There wont be any dramatic developments. Because its already banned by us and others. If someone discovers something tommorow, its irrelevant. To sell it would require law changes in multiple governments. Which isnt going to happen.
So we are commited to a single technology, which most cant afford, which simply extends the life of the existing fleet, with all the emmisions that brings with it.
Still, its good for the aftermarket.