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Scientists published in the journal Nature that human-generated CFC's are harming the ozone layer.
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The World Plan of Action on the Ozone Layer adopted by the UNEP Governing Council calls for intensive international research and monitoring of the ozone layer.
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British Antarctic Survey scientists report on the recurring springtime ozone hole over Antarctica.
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The Montreal Protocol is adopted on 16 September. The day is marked globally as the International Day for the Preservation of the Ozone Layer since 16 September 1995.
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The first set of control measures under the Montreal Protocol take effect for developed countries.
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