The International Day for the Preservation of the Ozone Layer was decided by the United Nations General Assembly and it is celebrated on September 16^th every year. It is worth noting that the decision to select this Day (made on December 19^th, 2000) was the commemoration of the date, in 1987, on which nations signed the Montreal Protocol on Substances that Deplete the Ozone Layer which serves to raise more awareness concerning the consequences deriving from its deplation.

The aim of this Protocol is to protect the ozone layer by reducing the production of substances responsible for depleting the ozone layer. In support of the Protocol, the Kigali Amendment, which entered into force in 2019, aims to reduce hydrofluorocarbons (HFCs), one of the most dangerous greenhouse gases with a powerful climate warming potential and harmful to the environment.

The celebration of this Day helps spread awareness of the dangerous depletion of the ozone layer and invites people to look for possible solutions to preserve it. It is true that life on Earth would not be possible without sunlight, but it is also true that the energy emanating from the sun would be too great for life on Earth without the ozone layer, which protects the Earth from most of the sun’s harmful ultraviolet radiation that can cause numerous diseases, including skin cancer, but also cause serious damage to plants and crops, endangering entire ecosystems.