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 4, APRIL 1992
The role of methane in global warming remains poorly understood,
according to an article in Chem. Eng. News (pp. 26-28, Feb. 10,
1992) summarizing a January 1992 conference on atmospheric methane and other
gases, held in Huntington Beach, Calif. Recent information on the global cycles
of CO2, oxygen and N2O are also discussed. An article in Nature
by Lelieveld and Crutzen (see Prof. Pubs/Gen. Interest--Science,
this GLOBAL CLIMATE CHANGE DIGEST Issue--Apr. 1992.) argues that
the climatic effects of methane have been overestimated in previous IPCC
Methane Plumes Investigated: A joint U.S.-Russian field experiment will
attempt to confirm that massive plumes periodically observed rising out of ice
in the East Siberian Sea during the past 15 years contain methane gas. Air
samples will be acquired by aircraft, to test suspicions that the plumes are the
result of melting and vaporizing of methane hydrates in the sea floor.
CFC Warming Offset: In the February 27, 1992, issue of Nature,
Ramaswamy and Schwarzkopf present model results showing how greenhouse warming
by CFCs is roughly offset by the ozone depletion they cause. An article by Kiehl
in the same issue explains that it is not all that simple. (See Prof.
Pubs./Gen. Int.--Science, this GLOBAL CLIMATE CHANGE DIGEST issue--Apr. 1992.)
"Hole in the Sky Stunts Antarctic Plankton," S. Pain, New
Scientist, p. 20, Feb. 29, 1992. Discusses a recent Science article
by Smith et al. on how the Antarctic ecosystem could be altered by increased
ultraviolet radiation under the ozone hole. (See Prof. Pubs./Gen. Int.--Science,
this GLOBAL CLIMATE CHANGE DIGEST issue--Apr. 1992).
"Chemistry to Play Greater Role in Activities of Global Environment
Group," D. A. O'Sullivan, Chem. Eng. News, pp. 19-22, Mar. 9, 1992.
A lengthy discussion of trends in the Scientific Committee on Problems of the
Environment (SCOPE), which has been in the forefront of several issues over the
years, including nuclear winter and climate change.
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Index of Abbreviations