February 28, 2007
GCRIO Program Overview
Our extensive collection of documents.
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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 7, NUMBER 2, FEBRUARY 1994
- GENERAL INTEREST--SCIENCE: OTHER TOPICS
Pools and Flux of Global Forest Ecosystems," R.K. Dixon
(Environ. Res. Lab., U.S. EPA, 200 SW 35th St., Corvallis OR
97333), S. Brown et al., Science, 263(5144),
185-190, Jan. 14, 1994.
Reviews recent studies to produce a new global estimate of
carbon pools and fluxes, especially related to forest land use,
and examines implications for future forest management and carbon
balance in a changing climate. Slowing deforestation and other
forest management measures could conserve or sequester
significant quantities of carbon, but future forest carbon
cycling trends, attributable to losses and regrowth associated
with changes in global climate and land use, are uncertain. Model
projections and other results suggest that forests could be
either sinks or sources of carbon in the future.
Response of a Coupled Ocean-Atmosphere Model to an Increase of
Atmospheric Carbon Dioxide," S. Manabe (GFDL, POB 308,
Princeton NJ 08542), R.J. Stouffer, J. Clim., 7(1),
5-23, Jan. 1994.
Compares three 500-year simulations: constant CO2, CO2
doubling by year 70 and remaining constant, and CO2 quadrupling
by year 140 and remaining constant. One of the most notable
results is the gradual disappearance of thermohaline circulations
in most of the model oceans during the first 250 years of the
quadrupled CO2 case, primarily due to the capping of the oceans
by fresh water resulting from increased poleward moisture
transport. Elevated CO2 leads to global temperature increase of
3.5C° and 7°C respectively, and sea level rise due to thermal
expansion alone of about 1 and 2 meters, respectively.
Low-Cost Technology for Increasing the Earth's Albedo to Mitigate
Temperature Rises," S.S. Penner (Dept. Appl. Mechanics,
Univ. California, San Diego CA 92093), J. Haraden, Energy, 18(10),
1087-1090, Oct. 1993.
Calls for preliminary research on the feasibility of injecting
particles into the atmosphere using jet aircraft as a means of
limiting global temperature increase; application on a large
scale should not even be considered except as a possible last
resort 50-100 years from now.
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