Ozone Layer

UNEP

1977

“In 1977, the United Nations Environment Programme (UNEP)
sets up a co-ordinating committee to study the ozone layer.”

CFCs in Aerosols

1978

“In 1978, the United States of America, Canada,
Sweden and Norway ban the use of CFCs in aerosols.”

UNEP starts intergovernmental negotiations

1981

In 1981, UNEP starts inter-governmental negotiations to protect the ozone layer.

Governments agree to study...

1985

“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.”