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World Ozone Day: What are the adverse effects of depleting Ozone layer

Located in the stratosphere, about 15 to 35 kilometers above the Earth's surface is the ozone layer, a crucial gaseous shield. This layer is mostly made up of ozone (O₃) molecules and is essential for shielding life on Earth. But will its depletion affect human life adversely?

Ananya Kohli
Adverse effects of the depleting Ozone layer. Representational Image
A view of clouds (Representational Image Source: Freepik)

The ozone layer is the protective shield against the harmful ultraviolet rays. However, using chemicals such as chlorofluorocarbons (CFCs) and other human activities have contributed to its depletion. The ozone hole over Antarctica was discovered in the 1980s, raising concerns worldwide.  This ultimately led to the adoption of the Montreal Protocol. The Montreal Protocol is an international agreement designed to gradually phase out the production of substances that deplete the ozone layer. September 16th is recognized as World Ozone Day. It is a stark reminder of the importance of preserving this natural barrier. It is our shared responsibility to keep the planet's sensitive atmosphere safe.

Why Do We Celebrate World Ozone Day?

The 1987 Montreal Protocol was the beginning of World Ozone Day. Before this, air conditioning, refrigeration systems, and aerosol sprays frequently contained CFCs. Scientists and decision-makers were concerned as these chemicals were destroying the ozone layer and causing a massive "hole" to form over Antarctica.

The Montreal Protocol, widely regarded as one of the most successful environmental accords in history, has shown the effectiveness of international collaboration in addressing environmental challenges. On World Ozone Day, we honor the signing of this protocol and spread awareness of the significance of ongoing atmospheric protection efforts.

The theme for World Ozone Day 2024 is “Ozone for Life.” This theme highlights the benefits of the Montreal Protocol and how far we have come in restoring this layer.

Effects of Depletion of Ozone

The Earth's surface is exposed to direct UV rays when the ozone layer is thinner, which can result in:

  • Risks to health: An increase in sunburns, cataracts in the eyes, and skin cancer cases.

  • Agricultural Damage: The yields of crops can be impacted by UV radiation, which lowers food security.

  • Marine Ecosystems: UV radiation affects plant life, which forms the base of aquatic food chains. Marine life and biodiversity are impacted by their decline.

Call for Unity

World Ozone Day acts as an appeal for unity. It serves as a reminder of the visible improvements we have made and the path ahead in preserving the health of the ozone layer for coming generations. Safeguarding life on Earth is more important than simply maintaining a sustainable environment when it comes to protecting the ozone layer.

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