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 4, NUMBER 4, APRIL 1991
The nitrous oxide budget should be revised, according to two recent
papers. One study showed that industrial sources of this greenhouse gas, such as
nylon production, could be important; NASA scientists have concluded that N2O
emissions from biomass burning are several times less than previously believed.
(See papers by Cofer et al. and by Thiemans and Trogler in Prof. Pubs./Gen.
Interest and Policy, this Global Climate Change Digest issue--Apr. 1991;
also "Fresh Smoke Lowers Nitrous Oxide Estimate," Science News,
p. 134, Mar. 2, 1991.)
Forest management and soil carbon is the subject of a literature
review being constructed for the National Council of the Paper Industry for Air
& Stream Improvement (NCASI), in conjunction with field work on the effects
of past forest management on net carbon gain or loss. Soil carbon data has been
routinely determined but not emphasized by forest soil scientists, so
traditional computer searches may miss much existing data. Relevant information
is solicited by Dale Johnson, Dept. Range, Wildlife & Forests, Univ. Nevada,
Reno NV 89512 (702-673-7379).
"Antarctic Ozone Hole Could Double in Size," P. Zurer, Chem.
Eng. News, p. 7, Jan. 7, 1991. This is the conclusion of a recent paper
which also reinforces the picture of the Antarctic as an isolated chemical
reactor vessel. (See Schoeberl and Hartmann paper, Science, Jan. 4,
1991, listed in Prof. Pubs./Of Gen. Interest, Global Climate Change Digest,
Feb. 1991.) However, a debate continues over an alternative view of the vortex
as a flow reactor which can export ozone-depleted air toward the equator.
"Impact of Sea-Level Rise Assessed," S. Bush, Eos, p.
106, Mar. 5, 1991. Climatic Change, local tectonic subsidence and other factors
can contribute to relative sea level rise. This article summarizes projected
impacts for specific sites discussed at the February AAAS meeting: New York
City, the eastern Mediterranean coast, Chesapeake Bay, and Venice, Italy.
"NASA Selects First EOS Payload," ibid., pp. 97, 104,
Feb. 26, 1991. Describes the 11 instrument investigations selected to be
included on the first satellite of the Earth Observing System.
"Global Warming Underfoot," R. Monastersky, Science News,
pp. 90-91, Feb. 9, 1991. Geophysicists have been attempting to deduce the
Earth's recent temperature history by measuring temperatures in holes bored 100
meters or more into the ground. This was the topic of a symposium at December's
American Geophysical Union meeting. (See also Nature, p. 458, Feb. 7,
"Heard Island Global Warming Test," R.C. Spindel, Environ.
Sci. & Technol., pp. 210-212, Feb. 1991. A scientific synopsis of the
experiment to measure ocean warming using long-range underwater acoustic
"Charting the Boreal Forest's Role in Global Change," Eos,
pp. 33, 35, 40, Jan. 22, 1991. An outline of the cooperative Boreal
Ecosystem--Atmosphere Study (BOREAS), which will study the important role of
tundra and other parts of the northern ecosystem, through 1996.
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Index of Abbreviations