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Discovery of the impacts of CFC's
Scientists published in the journal Nature that human-generated CFC's are harming the ozone layer. -
The World plan of Action
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. -
Antarctic hole
British Antarctic Survey scientists report on the recurring springtime ozone hole over Antarctica. -
The Montreal Protocol adoption
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. -
First Control measure
The first set of control measures under the Montreal Protocol take effect for developed countries.