As a progressive and free (not to say atypical) spirit, I am nonconformist. I have always had difficulty with Protocol.
But as a computer scientist, as a champion of open standards and interoperability and as a world citizen, I love protocols. From HTTP to Kyoto's, protocols are at the center of sustainable software and sustainable development. Uncapitalized protocols are clearly capital.
So, as a green Quebecer, although I was still a baby when it was adopted, I can't refrain from feeling a little pride about the Montreal Protocol. It is remarkable that the world managed to set its course towards recovery without even fully realizing how catastrophic the situation would have become.
Hopefully, that realization and satisfaction will provide enough will to comply with the recent and future protocols or other mechanisms needed to mitigate the climate crisis (without taking the ozone's recovery as granted).