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“In 1977, the United Nations Environment Programme (UNEP)
sets up a co-ordinating committee to study the ozone layer.” -
“In 1978, the United States of America, Canada,
Sweden and Norway ban the use of CFCs in aerosols.” -
In 1981, UNEP starts inter-governmental negotiations to protect the ozone layer.
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“Governments agree to study, exchange information and
protect the ozone layer - through the Vienna Convention for the
Protection of the Ozone Layer (1985). Scientists continue to find proof of ozone depletion.”
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