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Christian Schöenbein identifies the existance of the ozone layer in a labrotory.
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Jean-Louis Soret proves that the ozone is made up of O3.
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Walter Hartley discovers the ozones importance in the atmosphear.
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The applicatoion of CFC's are discovered
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The use of CFC's increase
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Sherwood Rowland and Mario Molina warn of the ozone depleting
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The US bans none essential CFC's in US.
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There is a ban of CFC use in the US and EU.
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There is a world wide ban of the use on CFC's.
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