When is the International Day for Preservation of Ozone Layer Observed?
VerifiedAnswer: 16th September
Explanation:
The International Day for Preservation of Ozone Layer is observed every year on 16th September across the world. This day was designated by the United Nations General Assembly to commemorate the date when the Montreal Protocol on Substances that Deplete the Ozone Layer was signed in 1987.
The Montreal Protocol is considered one of the most successful environmental agreements in history. It was created to protect the ozone layer by phasing out the production and consumption of ozone-depleting substances like chlorofluorocarbons (CFCs), halons, and other harmful chemicals. These substances were commonly used in refrigerators, air conditioners, aerosol sprays, and foam-blowing agents.
The ozone layer is a thin shield of gas located in the Earth's stratosphere, approximately 10 to 30 miles above the surface. This layer acts as a natural sunscreen, filtering out harmful ultraviolet (UV) radiation from the sun. When this protective layer gets damaged, it can lead to increased cases of skin cancer, cataracts, and harm to marine ecosystems and agricultural crops.
The theme for this day changes every year, focusing on different aspects of ozone protection and environmental conservation. The day serves multiple purposes: raising awareness about the importance of the ozone layer, celebrating the progress made in healing the ozone hole, and encouraging continued efforts to protect our planet's atmosphere.
Since the implementation of the Montreal Protocol, scientists have observed encouraging signs of ozone layer recovery. The Antarctic ozone hole, which was discovered in the 1980s, has shown signs of healing, and researchers predict that the ozone layer could fully recover by the middle of this century if current protection measures continue.
On this day, various organizations, schools, and environmental groups conduct awareness programs, seminars, and educational activities to inform people about the importance of protecting the ozone layer. Students often participate in essay competitions, poster-making contests, and environmental campaigns to spread the message of ozone protection and sustainable living practices.
