world ozone day

• World Ozone Day or the International Day for the Protection of the Ozone Layer was observed across the world on 16 September 2021.

• The day is celebrated every year and is dedicated to a cause that is important for the protection of the ozone layer.

• World Ozone Day was declared by the United Nations General Assembly in 1994 after the signing of the Montreal Protocol.

• The Montreal Protocol on Substances that Deplete the Ozone Layer was signed by almost every country in 1987.