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Thread: CFCs and ozone depletion

  1. #1 CFCs and ozone depletion 
    May
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    I need an in-depth summary of how CFC's influence ozone depletion. Could anyone help?


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  3. #2  
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    This isn't in-depth. But it gives you a good illustration of the chemical processes in the upper atmosphere, diagrams and all, to set firmly in your mind before moving on to quantities and timelines and the rest.

    The Hole Story - Introduction- Causes of Ozone Depletion


    "Courage is what it takes to stand up and speak; courage is also what it takes to sit down and listen." Winston Churchill
    "nature is like a game of Jenga; you never know which brick you pull out will cause the whole stack to collapse" Lucy Cooke
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  4. #3  
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    thanks... what do you mean by quantities and timelines?
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  5. #4  
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    Have a look at the other pages on that site - before it goes off into the skin cancer issue.

    Quantities and timelines. What quantities of CFC for how much effect on on the ozone layer. How much ozone was there. How much now. How long to stabilise the hole. How long to get it to start shrinking back. How long do we expect it will take before returning to original layer configuration.
    "Courage is what it takes to stand up and speak; courage is also what it takes to sit down and listen." Winston Churchill
    "nature is like a game of Jenga; you never know which brick you pull out will cause the whole stack to collapse" Lucy Cooke
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