What is Montreal Protocol?

This article describes what is Montreal Protocol, impact of the Montreal Protocol on ozone layer depletion, are the threats posed by ozone layer depletion real, is the ozone layer main cause of the climate change or greenhouse effect, when is the ozone layer expected to be recovered, how can we contribute in reducing ozone layer depletion, Due to decrease in ozone layer at alarmingly high rates, various nations of the world came together in the year 1987 in Montreal and resolved to reduce the production and release of the gases that cause ozone layer depletion. The agreement reached among the various nations is called “Montreal Protocol on Substances that Deplete the Ozone Layer.”