Ozone Depletion

ByDipen Chauhan

Basics

• What is Ozone?• What is the Ozone Layer?

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

Ozone Hole contd.

Mechanism

Mechanism of depletion

Impacts of Ozone Depletion

• Health impacts• Environmental impacts

Prevention

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

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