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THE OZONE HOLE

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Mind Map on THE OZONE HOLE, created by evpericoc on 10/21/2015.
evpericoc
Mind Map by evpericoc, updated more than 1 year ago
evpericoc
Created by evpericoc over 6 years ago
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Resource summary

THE OZONE HOLE
  1. A fraction of the radiant energy producted sun ultraviolet (UV)
    1. is so energetic that it can damage biological molecules.
    2. 1985
      1. British atmospheric scientists
        1. published the startling news that springtime levels of stratospheric ozone
          1. Artarcticahad declined by more than 40% since
            1. 1977.
      2. the ozone hole is caused primarily
        1. by human production
          1. release of chlorofluorocarbons
            1. (CFCs)
          2. 1987
            1. montreal protocol
              1. subsequent amendments set limits
                1. established phase-out
                  1. periods for several ozone-depleting substance,.
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