International Day for the Preservation of the Ozone Layer

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HashtagsCompiled on#WorldOzoneDay, #OzoneDay
Related Hashtags#OzoneLayer, #MontrealProtocol
2024 Date16 September 2024
2025 Date16 September 2025

International Day for the Preservation of the Ozone Layer

International Day for the Preservation of the Ozone Layer in

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International Day for the Preservation of the Ozone Layer

The International Day for the Preservation of the Ozone Layer is an annual observance highlighting the importance of the Earth's ozone layer in protecting our planet from harmful ultraviolet (UV) radiation. By raising awareness of the ozone layer's role, this day aims to educate the public about the need for continued efforts to reduce the use of ozone-depleting substances (ODS) and mitigate their adverse effects on climate change. As a result, this observance plays a crucial role in promoting global environmental sustainability.

The Ozone Layer Preservation Day, established by the United Nations in 1994, commemorates the signing of the Montreal Protocol on Substances that Deplete the Ozone Layer in 1987. As an active participant in combating ozone depletion, New Zealand ratified the Montreal Protocol and has since then implemented national policies to limit the production, import, and use of ODS in various industries. New Zealanders find preserving the ozone layer critical, as the country's geographical location close to the Antarctic "ozone hole" puts its population at higher risk of exposure to harmful UV radiation and related health problems, such as skin cancer.

In New Zealand, the International Day for the Preservation of the Ozone Layer is a significant event that is observed in various ways to raise awareness and promote eco-friendly practices. Schools, environmental organizations, and the general public engage in educational programs, seminars, and campaigns that underscore New Zealand's commitment to the global effort of protecting the ozone layer. These initiatives continue to remind Kiwis of their collective responsibility to preserve Earth's natural shield against harmful UV radiation, ensuring a safer and healthier planet for future generations. The International Day for the Preservation of the Ozone Layer takes place on September 16th each year.

Facts about the Ozone Layer

  • The theme for International Day for the Preservation of the Ozone Layer in 2024 was Montreal Protocol: fixing the ozone layer and reducing climate change. In 2022 the theme was 30 Years of Healing the Ozone Together.
  • The natural level of ozone in the stratosphere is a result of a balance between sunlight that creates ozone and chemical reactions that destroy it.
  • The thinning of the ozone layer is caused by chemicals, such as chlorofluorocarbons (CFCs), carbon tetrachloride, halons, and others. These chemicals -- often used in refrigeration, air conditioning, packaging, insulation, aerosols, and so on -- release chlorine and bromine when they come in contact with sunlight. These elements then deplete the ozone layer.
  • One of the primary concerns for New Zealand's ozone layer is the increased UV radiation due to ozone depletion in the Antarctic region. The country is particularly vulnerable due to its low latitude and high atmospheric clarity.
  • In recent years, the ozone layer over New Zealand has shown signs of recovery due to international efforts to reduce the use of ozone-depleting substances. The overall ozone levels are expected to return to pre-1980 levels by the middle of the 21st century.

Top things to do in NZ for this observance

  • Follow the news and developments related to the ozone layer in New Zealand. Be aware of the country's policies, initiatives, and measures taken to protect and restore the ozone layer.
  • Learn about the science behind the ozone layer, including its formation, composition, and depletion mechanisms. Understand the role of ozone-depleting substances (ODS), such as chlorofluorocarbons (CFCs), in ozone depletion and the resulting impacts.

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