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International Day for the Preservation of the Ozone Layer

16/09/2021 @ 8:00 AM 5:00 PM

This year International Day for the Preservation of the Ozone Layer celebrates 35 years of the Vienna Convention and global ozone layer protection.

The ozone layer, a fragile shield of gas, protects the Earth from the harmful portion of the rays of the sun, thus helping preserve life on the planet.

Life on Earth would not be possible without sunlight. But the energy emanating from the sun would be too much for life on Earth to thrive were it not for the ozone layer. This stratospheric layer shields Earth from most of the sun’s harmful ultraviolet radiation. 

In the late 1970s scientists discovered that humanity was creating a hole in this protective shield and raised the alarm. The hole – caused by ozone-depleting gases (ODSs) used in aerosols and cooling, such as refrigerators and air-conditioners – was threatening to increase cases of skin cancer and cataracts, and damage plants, crops, and ecosystems.

In 1985, the world’s governments adopted the Vienna Convention for the Protection of the Ozone Layer. Under the Convention’s Montreal Protocol, governments, scientists and industry worked together to cut out 99 per cent of all ozone-depleting substances. World Ozone Day, held on September 16, celebrates this achievement. 

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