February 28, 2007
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Global Climate Change Digest
A Guide to Information on Greenhouse Gases and Ozone Depletion
Published July 1988 through June 1999
FROM VOLUME 5, NUMBER 6, JUNE 1992
Prompted by further evidence of widespread ozone
depletion gathered over the past year, a working group of parties to the
Montreal Protocol agreed in April to advance the phase-out of CFCs world-wide to
January 1, 1996. The decision will be reviewed at another working group meeting
in July before being presented in November to a ministerial meeting of parties
to the protocol. Prior to the agreement, the U.S., Canada, the European
Community and Japan had all announced intentions to meet this date.
Environmental organizations criticized the agreement because it does not cover
all ozone depleting chemicals; allows certain exemptions for essential uses and
for servicing existing equipment; does not encourage alternative technologies;
and provides insufficient funds for developing countries to make the required
transition. (See Intl. Environ. Rptr., pp. 219-220, Apr. 22, 1992.)
HCFC-22 (or R-22) is one of the chemicals not covered under the proposed
agreement, although many think it should be. Faster elimination of this CFC
substitute, now widely used in refrigeration equipment, and of other substitutes
was discussed by the working group, although no binding agreement on them was
sought. In the U.S., the Environmental Protection Agency is reviewing the
current phase-out date of 2020 mandated in the Clean Air Act, and may move it up
in rules to be proposed by this summer (ibid., p. 196, Apr. 8). A
feature report on HCFC-22 appears in Global Environ. Change Rep., pp.
1-3, Apr. 24.
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Index of Abbreviations