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 6, NUMBER 7-8, JULY-AUGUST 1993
fluctuations are discussed in a comprehensive research news feature in Science
(R.A. Kerr, pp. 890-892, May 14). Recent analyses of Greenland ice cores, coral
reefs and ocean sediments show that climate has switched rapidly between warm
and cold phases many times in the past, sometimes over periods as short as a few
years. Initial concern that human activities could flip the climate switch has
lessened somewhat, but such evidence from the past could soon lead to a deeper
understanding of the climate system, which is needed for predicting future
climate. (A similar article appears in The New York Times, p. C4, July
Pollution, clouds and
climate: Results from the Atlantic Stratocumulus Transition Experiment
(ASTEX) reported at the May AGU meeting provide evidence that industrial
aerosols influence the mechanisms by which extensive decks of low stratocumulus
clouds break up to form individual cumulus clouds. (See Nature, pp.
589-584, June 17 1993). These results suggest a new route by which fossil fuel
burning could affect cloud radiative properties and climate.
have decreased over the past decade, implying decreased absorption of solar
radiation and heating of the Arctic regions. (See Bodhaine article in Prof.
Call for Proposals:
Land Use and Global Change. The International Institute for Applied Systems
Analysis (IIASA) seeks joint proposals from international, interdisciplinary
teams of scholars for a two- or three-year research project, for developing
models that link the socio-economic causes of land-use change with regional and
global environmental consequences. Teams of applicants should submit letters of
interest before Oct. 1; full proposals are due by Jan. 10, 1994. Contact Ingrid
Teply-Baubinder, IIASA, A-2361 Laxenburg, Austria (tel: +43-2236-715210; fax:
conference: Contributions are solicited for the first science conference of
the Global Change and Terrestrial Ecosystems (GCTE) Core Project of the IGBP, to
be held next May.
"Disposing of CO2
from Fossil-Fueled Power Plants," J. Rose,
Environ. Sci. Technol., pp. 1282-1283, July. Summarizes a recent
conference in the U.K. sponsored by the International Energy Agency. One
proposal is to construct massive, insulated spheres of solid CO2 400
meters in diameter, that would take 4,000 years to sublime completely. A
subsequent meeting determined that future IEA research will focus on ways of
using waste CO2 to manufacture organic chemicals, and on ocean
The following are among
19 articles in a special section "Science in Europe '93," in Science,
"ERS-1 Gives Europeans New Views of the Oceans," D. Clery, pp.
1742-1743. The ERS-1 satellite's unique combination of instruments gives Europe
a significant lead in ocean observation, but controversy is growing over how to
handle the data.
"The Greenland Ice Core Project," B. Stauffer, pp. 1766-1767.
Latest results call for concern over the causes of rapid climatic fluctuations.
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