International_Ozone_Day_2025.pptx peohsb

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1. International Ozone Day 2025 Theme: From Science to Global Action Presented by: Dibya Jyoti Dash

2. What is the Ozone Layer? - A layer of ozone (O₃) molecules located in the stratosphere - Absorbs harmful ultraviolet (UV-B) radiation from the sun - Protects life on Earth from skin cancer, cataracts, and crop damage

3. Discovery & History of Ozone Depletion - 1970s: Scientists discovered ozone depletion due to CFCs - 1985: Discovery of the Antarctic ozone hole - Raised global concern on environmental safety

4. Global Agreements - Vienna Convention (1985): Framework for international cooperation - Montreal Protocol (1987): Legally binding treaty to phase out ODS - Most successful environmental treaty in history

5. From Science to Policy Change - Scientific research proved link between CFCs and ozone depletion - Prompted global political action - Ozone layer is healing; expected recovery by mid-21st century

6. Theme 2025: From Science to Global Action - Celebrates role of science in shaping international agreements - Highlights the importance of collaboration - Encourages turning scientific knowledge into practical steps

7. Challenges Ahead - Illegal production and use of ODS in some regions - Growing demand for cooling → rise in HFCs (greenhouse gases) - Intersection with climate change requires new solutions

8. Kigali Amendment - 2016 amendment to the Montreal Protocol - Targets phase-down of Hydrofluorocarbons (HFCs) - Potential to prevent up to 0.4°C of global warming by 2100

9. How We Can Contribute - Choose ozone-friendly products and appliances - Raise awareness in community and institutions - Support eco-friendly policies and sustainable practices

10. Conclusion & Call to Action - Ozone protection is a global success story - Continued vigilance and action are essential - Together, we can ensure a safer, healthier planet