CFC emissions took some time to subside after the Montreal Protocol. We also know there's a current Chinese source[0] which is still emitting CFCs in 2019. So I

CFC emissions took some time to subside after the Montreal Protocol. We also know there's a current Chinese source[0] which is still emitting CFCs in 2019. So I dunno if 'governments' have the advantage on that one. [0] https://www.bbc.com/news/science-environment-48353341 https://www.bbc.com/news/science-environment-48353341