Ozone Depletion

1
Ozone Depletion

• Caroline Leahy
• Emily Ho
• Billy Castore
• Andrew Wheeler

2
What is Ozone Depletion?

• Ozone depletion is when CFCs, or
  chlorofluorocarbon molecules, react with the
  ozone, making a oxygen molecule, and carbon
  dioxide out of an ozone molecule. This results in
  holes in the ozone. From this, UV rays enter the
  Earths atmosphere, which causes global warming.

3
Where Is It Happening?

• Ozone depletion is happening everywhere, but is
  very severe above Antarctica. As a result of the
  UV rays glaciers are melting and animals like
  polar bears are becoming extinct from lack ice.

4
How Are We Causing It?

• We as humans are causing ozone depletion by using
  CFCs. These are things like propellants for
  aerosol cans, coolants in air conditioning,
  coolants in refrigerators, Styrofoam and medical
  sterilizers. Theyre also used in fire
  extinguishers and during many industrial
  processes.

5
What If It Isnt Stopped?

• The ozone is vital to keep UV rays out of the
  earths atmosphere. Since the ozone is being
  destroyed by CFCs, UV rays will enter the earth.
  The UV rays will heat up the earth. Also the rays
  are more powerful leading to people getting skin
  cancer easier.

6
How Can I Help?

• Since CFCs cause ozone depletion, you can reduce
  using products that release CFCs. For example
  turn you air condition off when you leave your
  house. Instead of using Styrofoam for packaging,
  use bubble wrap. These things might seem
  insignificant, but if many people do this then
  ozone depletion will decrease.

7
How it Effects the Carbon Cycle

• CFC is made up of chlorine, fluoride, and carbon.
  When CFC enters the ozone, it reacts with the
  ozone. A oxygen and carbon dioxide molecule
  result from the CFC reacting with a ozone
  molecule. This means that there is more carbon
  dioxide in the Earth, because there are not
  enough plants to use the carbon dioxide for
  photosynthesis. The carbon dioxide is trapping
  the heat that would have gone back into the
  atmosphere. As a result the Earth is getting
  warmer.

8
Works Cited

• http//www.blog.thesietch.org/wp-content/uploads/2
  007/04/earth.jpg
• http//www.solcomhouse.com/images/Ozjfc.jpg
• http//www.acbaptist.org/na/polarbear.jpg
• http//www.firesystemsusa.com/images/fire_extingui
  sher_2.jpg
• http//z.about.com/d/space/1/0/Y/Q/sun_tour.jpg
• http//chocolatecakemoments.com/blog/wp-content/up
  loads/2009/12/bubble-wrap.jpg
• http//www.historyforkids.org/scienceforkids/chemi
  stry/atoms/pictures/carbondioxide.jpg