How fungible is it? When the US banned leaded gasoline, did other countries increase their usage? I suspect when California finishes shutting down the last coa

How fungible is it? When the US banned leaded gasoline, did other countries increase their usage? I suspect when California finishes shutting down the last coal plant, it'll probably be with local unused natural gas capacity or renewable. I don't think it's practical for the state to import coal power from separate grids or across the country. I know reducing coal usage in the US might make it cheaper to burn in coal in other parts of the world, but there's still local benefits wrt lifespan and air quality