Montreal Protocol

The Montreal Protocol on Substances that Deplete the Ozone Layer is an international environmental treaty that regulates the production and consumption of manmade chemicals called ozone depleting substances. It was adopted on September 15, 1987 to protect the ozone layer, which protects humans and other living beings from harmful levels of UV radiation from the Sun. It is the only international treaty that has been ratified by all the UN members.
The objective of the Montreal Protocol is to phase down the consumption and production of ODS in a systematic and inclusive manner. The treaty specifies responsibilities to all parties for phasing out different groups of ODS and controlling trade, licensing and other matters related to the same.