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Ozone-depleting properties of CFCs recognized. USA and Sweeden banned them from non-essential aerosol uses
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British Antarctic Survey reports ozone hole
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This was organized by the UNEP, 30 countries - half CFCs emissions by 2000
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London amendment strengthen it by making industrialized countries eliminate CFCs by 2000 and developing countries by 2010
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Measures to accelerate phasing out of ODS + replacement by substitute chemicals
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Nobel prize for chemistry for those solving the ozone depletion issue
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NASA + NOAA record the hole in the ozone as the largest yet
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25th anniversary of protocol