World Ozone Day is observed each year on

World Ozone Day is observed on 16 September every year to mark the signing of the Montreal Protocol in 1987. This treaty was created to protect the ozone layer by phasing out ozone depleting substances such as chlorofluorocarbons. The ozone layer is important because it shields life on earth from harmful ultraviolet rays. On this day awareness campaigns educational programs and environmental projects are organized worldwide. The celebration serves as a reminder of global cooperation in protecting the environment. It also shows how collective action can reverse environmental damage making it a success story for humanity.