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- Every year on 16 September, International Day for the Preservation of the Ozone Layer or World Ozone Day is celebrated.
- The theme of World Ozone Day 2023 is “Montreal Protocol: fixing the ozone layer and reducing climate change.”
- In 1994, the United Nations General Assembly had declared 16 September as the International Day for the Preservation of the Ozone Layer.
- It is celebrated to mark the anniversary of the signing of the Montreal Protocol on Substances that Deplete the Ozone Layer in 1987.
- In the history of the United Nations, the Vienna Convention and Montreal Protocol were the first treaties to achieve universal ratification on 16 September 2009.
- At the 28th Meeting of the Parties of the Montreal Protocol, signatories of the protocol agreed to end the use of hydrofluorocarbons phase-wise.
- The ozone layer is the shield of gas that protects the Earth from the sun’s harmful UV rays.
- The depletion of the ozone layer can cause skin cancer in humans and the destruction of the ecosystem.
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