1. Ozone Depletion By Dipen Chauhan

2. Basics What is Ozone? What is the Ozone Layer?

3. Ozone Hole Actually a region of thinned ozone, not actually a pure hole - doesn't make headlines like it used to. Not to be confused with global warming. Good News Bad News

4. Ozone Hole contd.

5. Mechanism

6. Mechanism of depletion

7. Impacts of Ozone Depletion Health impacts Environmental impacts

8. Prevention Montreal Protocol on Substances that Deplete the Ozone Layer was finally agreed upon on 16 september 1987

9. Acknowledgements BBC News “Deep reflections on the ozone story” Richard Black. May 5 2010 Theozonehole.com Ozone Depletion Wiki Ottawa Citizen “Nitrous oxide is top destroyer of ozone layer: study” AFP. Sep 1, 2009 Tehran Times “Whatever happened to the hole in the ozone layer?”. May 9, 2011