In 1987, one of the most successful multilateral environmental efforts were undertaken when the Montreal Protocol was signed, with the objective to completely phase out ozone depleting cholorofluorocarbons (CFCs). On September 16, 1987, 196 states and the European Union (a total of 197 parties) got together to sign the Montreal Protocol. This was such a huge success and 99% of CFCs were removed from the products in which they were used, helping to save the ozone layer that protects the Earth from harmful UV radiation from the Sun.
Now, a new study suggests that this treaty may also have helped us avert a climate crisis; otherwise we would be in an even worse situation than we are now. Read More.