ozone depletion
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Ozone Depletion. By Sam Wilson. What is Ozone?. Ozone is super charged oxygen molecules (O3) It is made naturally by the suns energy interacting with atmospheric oxygen. wikipedia. What is Ozone cont. . Our primary defense against harmful UVB radiation from the sun - PowerPoint PPT PresentationTRANSCRIPT
Ozone Depletion
By Sam Wilson
What is Ozone?• Ozone is super charged oxygen molecules (O3)• It is made naturally by the suns energy interacting with
atmospheric oxygen
wikipedia
What is Ozone cont. • Our primary defense
against harmful UVB radiation from the sun
• Ozone layer is between 6 and 30 miles above the Earth
• Ozone reflects radiation back out into space, but also reflects heat back down to Earth
wordpress
The Green House Effect
• Infrared (heat radiation) that does pass through Ozone is then trapped by green house gases and cannot escape back into space.
Global Greenhouse Warming
What is a CFC
• Chlorofluorocarbons destroy Ozone molecules• Used to be common in refrigeration units and
hair spray
NASA
Ozone Depletion Regulation
• Clean Air act (1990)– Manufacturer’s phase out of ozone depleting
compounds– Excise tax on sales of ozone depleting compounds– Required use of recovery equipment on air
conditioning and refrigerators – Set maximum allowable leakage rates
Ozone Depletion Video
• http://www.youtube.com/watch?v=PXV6ppONgUk