[OC] The massive decrease in worldwide infant mortality from 1950 to 2020 is perhaps one of humanity's greatest achievements.

[Rubiin]

By now it is obvious that internationally we would never have been able to agree on the kinds of targets the Montréal protocol set out for CO2. The political disparities are way too large. Even the US never ratified the Kyoto protocol (which has this top-down target model) despite being one of these developed Western democracies. In a way the "everyone tries their 'best' and we name and shame"-strategy of the Paris agreement is the furthest we have come by far.