16 September was declared as International Day for the Preservation of Ozone Layer by the United Nations General Assembly. The designation was made on 19 December 2000 which commemorate 1987 date on which the Montreal Protocol on Substances that Deplete the Ozone Layer was signed. World Ozone Day shows that the only way to solve major global problems is through collective decisions and science-led action.
30 years after the signing of the protocol, the breach in the ozone layer was closed. Considering the nature of the ozone depletion gases, their chemical effects are predicted to last between 50 and 100 years.
The ozone layer or also known as the ozone shield, a porous layer of gas, absorbs most ultraviolet rays in the earth’s stratosphere. These rays can cause many diseases of the skin.
The United Nations and 45 other countries signed the Montreal Protocol on Ozone-depleting substances on 16 September 1987. This day is observed every year as International Day for the Preservation of Ozone Layer. The aim of the Montreal Protocol is to protect the ozone layer by reducing the production of ozone layer depletions.
Theme of International Day for the Preservation of the Ozone Layer 2021
2021 Theme: Montreal Protocol – keeping us, our food and vaccines cool
This is one of the most effective environmental agreements to date. This Montreal Protocol started out as an international pact to safeguard the ozone layer. United global effort to phase out pollutants that deplete ozone means that nowadays the ozone layer hole cures human health, economies and ecosystems. It’s a healthy and safe environment. However, the Montreal Protocol achieves much more than the World Ozone Day this year aims to emphasize — slowing climate change and contributing to enhancing energy effectiveness in the cooling industry that adds to food safety.