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 8, NUMBER 10, OCTOBER 1995
New evidence of warming? A new study finds evidence that in some parts of
the world, characteristics of temperature and precipitation fluctuations have
changed in a manner predicted by computer models for greenhouse warming. (See
Karl article, Prof. Pubs./Gen. Interest/Trend Analyses in this Digest
issue--Oct. 1995, and The New York Times, p. C4, Sep. 26, 1995.)
Sun-climate relationships. "Natural Antidote to Global Warming?" J. Maddox, Nature,
p. 193, Sep. 21, 1995. A comment citing several recent studies. The condition of
the Sun in the seventeenth century suggests that reduced radiation could have
accounted for the Little Ice Age, but there is only a small chance that a
recurrence will head off global warming.
"A Fickle Sun Could Be Altering Earth's Climate After All," R.A.
Kerr, Science, p. 633, Aug. 4, 1995. At the latest meeting of the
International Union of Geodesy and Geophysics, climate modelers added support to
the correlation between atmospheric fluctuations and the 11-year sunspot cycle
proposed by Karin Labitzke in 1987. There is still little evidence that a
brightening sun drove the last century's global warming, as some greenhouse
skeptics argue, but the interest in finding sun-climate connections continues.
UV impacts on amphibians: Work by Andrew Blaustein and colleagues at
Oregon State University suggesting that amphibians are suffering from elevated
UV radiation is discussed in an article on the scientific rigor of ecological
experiments by W. Roush (Science, pp. 313-315, July 21, 1995). A number
of comments on the article, including a response by Blaustein, appear on pp.
1201-1204 of the Sep. 1 issue.
NIGEC request for proposals: The National Institute for Global
Environmental Change, operated at six regional centers in the U.S. for the
Department of Energy, has issued a request for proposals on a wide range of
research related to global change, for academic years 1996-1997. Proposals
are due Nov. 28, 1995. The RFP is available on the Internet at
http://nigec.ucdavis.edu, or from the regional centers.
"SST Emissions Cut Stratospheric Ozone," R. Lipkin, Science,
p. 229, Oct. 7, 1995. Estimates of the impact of a fleet of 500 new high-speed
civil transport planes proposed by NASA by 2015 have been made based on
measurements taken in the wake of the Concorde supersonic aircraft. (See Fahey
article in Prof. Pubs./Gen. Interest/Ozone Depletion in this Digest
"Iron Versus the Greenhouse: Oceanographers Cautiously Explore a
Global Warming Therapy," R. Monastersky, Science News, pp. 220-222,
Sep. 30, 1995. Summarizes recent experiments involving the stimulation of
plankton growth in the ocean by iron fertilization. (See Res. News, GLOBAL
CLIMATE CHANGE DIGEST, Aug. 1995) Also discusses growing concerns among
scientists and others over "geoengineering" schemes as solutions to
"Ocean Flip Puts Modellers on Med Alert," D. MacKenzie, New
Scientist, p. 8, Sep. 2, 1995. A striking shift in the deep water current of
the Mediterranean discovered by German scientists is the first hard evidence
that climate change may cause stable ocean currents, such as the Gulf Stream, to
switch into a new mode, a possibility predicted by climate models. (Related
correspondence appears on p. 70, Oct. 7.)
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