International Day for the Preservation of the Ozone Layer was observed on 16 September 2013 across the world to bring awareness about the depletion of Ozone layer in the atmosphere. This event commemorates the date of the signing of the Montreal Protocol on Substances that Deplete the Ozone Layer in 1987.
The day was designated by the United Nations General Assembly in 1994 since then International Day for the Preservation of the Ozone Layer is celebrated on September 16 every year.
The theme for the year 2013 is A healthy atmosphere, the Future We Want.
Ozone is a special form of oxygen with the chemical formula O3. Ozone constitutes a very small part of our atmosphere, but its presence is nevertheless vital to human well-being. Most ozone resides high up in the atmosphere, between 10 and 40km above Earth's surface. This region is called the stratosphere and it contains about 90 percent of all the ozone in the atmosphere. Ozone in the stratosphere absorbs some of the Sun’s biologically harmful UltraViolet radiation (UV).
About The Montreal Protocol
The Montreal Protocol on Substances that Deplete the Ozone Layer was designed to reduce the production and consumption of ozone depleting substances like Chloro Floro Carbons(CFCs) in order to reduce their abundance in the atmosphere, and thereby protect the earth’s fragile ozone Layer. The original Montreal Protocol was agreed on 16 September 1987 and entered into force on 1 January 1989. The Montreal Protocol has been hailed as a prime example of successful international cooperation to protect the global commons. In addition to protecting the ozone layer, the Montreal Protocol is also contributing to protect the global climate.
Who: United Nations
When: 16 September 2013