This page summarizes the history of international cooperation on the protection of the ozone layer, including: the Vienna Convention; the Montreal Protocol. The Montreal Protocol on Substances That Deplete the Ozone Layer is an international treaty designed to protect the ozone layerThe Paris Agreement is a legally binding international treaty on climate change. Will of our country to develop international cooperation in the field of environmental protection and that of the ozone layer, the delegation. A significant reduction in the consumption of ozonedepleting substances (ODS) has been achieved globally since 1986. The Montreal Protocol is an international agreement designed to heal the ozone layer. This agreement regulated the consumption and production of ozonedepleting compounds. The Montreal Protocol is an international agreement made in 1987. It was designed to stop the production and import of ozone depleting substances. The Kyoto Protocol was adopted on 11 December 1997.