1. Ozone Depletion & Climate Change

2. Ozone Hole South Pole and now north pole Thinning on its edges
In Canada – 45% thinned
Causes Polar Stratospheric Clouds that hold onto CFCs
Destroys and thins the Ozone layer

3. Effects of Ozone Hole More UV reaching earth
Kills phytoplankton, destroys DNA, increased cancer, weakened immune response, death of eggs for reptiles and amphibians, reduced crop yields

4. Greenhouse Effect Atmospheric acts like glass in a greenhouse
Sunlight heats the earth
Heat radiates up, some escapes, but most is kept in the troposphere by greenhouse gases
Water vapor, carbon dioxide, methane are the big three

5. Greenhouse Gases & Earth’s Temperature
More Carbon dioxide due to burning of coal, oil and wood products
Allows atmosphere to absorb more heat
Is global warming certain?
Will an increase in greenhouse gases effect climate?

6. Consequences Melting Ice & Rising Sea Levels
Hurricanes & Typhoons stronger & more frequent
Decreased Biodiversity
Human Health Problems

7. So is it…
Global warming that we are worried about or the consequences that we are seeing?
The rest of the world calls this Global Climate Change, not Global Warming.
Global warming is natural and necessary, it is when it goes to far and effect the climate that we start to worry.