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CFCs Invented
“Wonder gas” CFCs were invented in 1928 for commercial applications. -
Scientists Discover CFCs Split Up Ozone in...
"In late 1973, Rowland and Molina, who had recently joined Rowland’s lab, used data from a variety of published sources to calculate that CFC molecules released near the surface of Earth would, over decades, wind up in the stratosphere where UV radiation would split off chlorine atoms. Each chlorine atom would react immediately with an ozone molecule, setting off a chain reaction that would destroy thousands of ozone molecules." -
UN Gets Involved
“In 1977, the United Nations Environment Programme (UNEP)
sets up a co-ordinating committee to study the ozone layer.” -
Countries Begin to Ban Some CFCs
“In 1978, the United States of America, Canada,
Sweden and Norway ban the use of CFCs in aerosols.” -
UNEP Protects Ozone Layer
“In 1981, UNEP starts inter-governmental negotiations to protect the ozone layer.” -
Consumption Of CFCs
“After 1982, in the absence of other moves,
the consumption of CFCs increases again. Industry demands proof of ozone depletion due to CFCs.” -
Ozone Thinning
“The British Antarctic Team discovers severe thinning in the ozone layer over Antarctica - the ozone hole.” -
Protecting Of Ozone Layer
“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.” -
The Montreal Protocol on Substances that Deplete the ozone Layer
“In 1987, 46 governments agree to a fifty per cent cut in the
production and consumption of CFCs by the year 2000; a freeze
in production and consumption of halons by 1992; further
controls linked to assessments by experts.” -
CFCS Linking To Ozone Depletion
“In 1988, the UNEP - WMO report on ozone
trends links CFCs to ozone depletion.” -
The Need For Tougher Controls
“In 1989, the UNEP Assessment Panel of experts reports THE NEED for tougher controls.” -
London Amendment
“Parties agree to completely phase out CFCs by the year 2000, and to establish a Multilateral Fund to assist developing coun-
tries. US$ 240 million was allocated for 1991 - 1993.” -
Advancing CFCS Potential Of Depletion
“UNEP Assessment Panels recommend that more substances
(HCFCs, methyl bromide) are controlled and that the phase out of CFCs is advanced.” -
Copenhagen Amendment
“In 1992, it was decided that the developed countries phase out
HCFCs by 2030, freeze methyl bromide by 1995 and that the
phase out of CFCs be brought forward to 1996.” -
Bangkok Agrees to a Replenishment of the Multilateral Fund
“In 1993, the Meeting of the Parties, held in Bangkok, agrees to a
replenishment of the Multilateral Fund - US$455 million for 1994 - 1996.” -
Methyl Bromide Tougher Controls
“Halons are phased out by industrialized countries. UNEP Assess-
ment Panels recommend tougher controls on methyl bromide.” -
Phasing Out CCFs
“Some countries, the Russian Federation and others, report an
inability to phase out CFCs by 1996 due to their internal problems.
The Global Environment Facility (GEF) offers to help them.
Developing countries agree to phase out methyl bromide by 2010.” -
Parties Held in Costa Rica Approving The Replenishment Of Multilateral Fund
“The Meeting of the Parties held in Costa Rica, approves the
replenishment of the Multilateral Fund and gives US$466 million for 1997 - 1999.” -
Industrialized Countries Agree To Phase Out Methyl Bromide
“Industrialized countries agree to phase out methyl bromide by
2005. Developing countries will phase out the same by 2015.” -
GEF Helps Countries W Economies To Phase Out CFCs
“GEF assists countries with economies in transition to phase out CFCs.” -
Licensing Import / Export of CFCs
“Licensing for the import and export of CFCs was introduced.” -
Commitment of all Government To Continue full implementation of Protocol
The Beijing Declaration (December 1999) reiterated the
commitment of all Governments to continue full implementation
of the Montreal Protocol and ensure the protection of the ozone layer. -
Ozone Meeting On Approving Replenishment of the Multilateral Fund
The Ozone meetings in Beijing in December 1999 approved a
replenishment of the Multilateral Fund of US$ 440 million for the years
2000-2002 for continuing the phase-out of CFCs, in addition to the
carry-over of US$ 35.7 million from the previous period. -
11th Metting In Beijing Banned bromochloromethane, (a new ozone-depleting chemical)
The 11th Meeting of the Parties in Beijing banned
bromochloromethane, (a new ozone-depleting chemical)
and put controls on production of HCFCs and trade in HCFCs with non-Parties.