International Day for the Preservation of the Ozone Layer

This day was designated by the United Nations General Assembly as the International Day for the Preservation of the Ozone Layer on 19th December 2000, in commemoration of the date in 1987 on which nations signed the Montreal Protocol on Substances that Deplete the Ozone Layer. The closure of the hole in the Ozone layer was observed 30 yeas after the protocol was signed. The slogan this year is “Ozone for Life” which encourages people at this difficult time to keep thinking about the Ozone Layer and to protect it for future generations.