World Ozone Day, officially known as the International Day for the Preservation of the Ozone Layer, is celebrated annually on September 16^th, sheds light on the importance of preserving this crucial layer. The purpose of the day is to raise awareness about the importance of preserving the Ozone layer. The Montreal Protocol on Substances that Deplete the Ozone Layer in the atmosphere is one of the most important and effective global agreement with 197 member countries of United Nations till today. It was signed on 16 September, 1987. Since 1995, this day is commemorated as the International Ozone Day. Necessary efforts have been undertaken throughout the world to phase out ozone-depleting substances and as a result, the hole in the ozone layer is healing leading towards protection of human health, economies and ecosystems. Beside this, the Montreal Protocol has also highlighted on climate change and helped to boost up energy efficiency in the cooling sector, which contributes to food security. This year's theme, "Montreal Protocol: Fixing the Ozone Layer and Reducing Climate Change," underscores the symbiotic relationship between ozone layer preservation and climate action. Preserving the ozone layer not only shields us from UV radiation but also contributes to reducing greenhouse gas emissions.