Could the Montreal Protocol be the world’s most successful treaty?
In 1987, countries around the world came together to sign it.
To save the ozone layer.
The Montreal Protocol marks its 30th anniversary on 16 September 2017, the UN’s International Day for the Preservation of the Ozone Layer.
The celebration is all the more special, because the treaty worked.
- Health benefits
Thanks to the treaty, more than 135 billion tons of carbon dioxide-equivalent emissions were prevented from reaching the atmosphere between 1990 and…