February 28, 2007
GCRIO Program Overview
Our extensive collection of documents.
Archives of the
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
ANTHROPOGENIC EMISSIONS AND CONTROL
"Soils and Greenhouse Gases: Management for Mitigation," S.
Armstrong-Brown (Sch. Agric., Food & Environ., Cranfield Univ., Silsoe, Beds
MK45 4DT, UK), M.D. Rounsevell, P. Bullock, Chem. & Industry, No.
16, 647-50, Aug. 21, 1995.
Reviews the soil sources and sinks of each greenhouse gas, and explores ways
in which soil management can mitigate greenhouse gas releases. In the future,
greenhouse gases are likely to increase in developing countries in line with
moves toward intensive agriculture. Conversely, in developed countries, soil
emissions are declining and are likely to continue to do so because of the trend
toward less intensive agriculture. However, this trend derives from policies to
reduce agricultural surpluses or protect water resources, rather than direct
attempts at greenhouse gas mitigation. Future emissions will depend on policies
that address the issue directly. Many of the strategies suggested here are
compatible with efficient agricultural production.
"Impact on the Greenhouse Effect of Peat Mining and Combustion,"
H. Rodhe (Dept. Meteor., Stockholm Univ., S-10691 Stockholm, Swed.), B.
Svensson, Ambio, 24(4), 221-225, June 1995.
The decreased emission of methane from drained peat mires compensates for
about 15% of the CO2 emitted during the combustion of the peat. In a time frame
of less than several hundred years, the greenhouse effect of peat is comparable
to a fossil fuel.
"Estimations of Real-World N2O Emissions from Road Vehicles by Means
of Measurements in a Traffic Tunnel," Á. Sjödin (Swed. Environ.
Res. Inst., Göteborg, Swed.), D.A. Cooper, K. Andréasson, J. Air
& Waste Mgmt., 45(3), 186-190, Mar. 1995.
Calculates an average N2O emission factor for the mixed-vehicle fleet of
about 25 mg N2O/km at average speeds of 30-70 km/h.
"Hydroelectric Dams in the Brazilian Amazon as Sources of
'Greenhouse' Gases," P.M. Fearnside (Dept. Ecol., Natl. Inst. Res. in
Amazonia, POB 478, 69011-970 Manaus, Amazonas, Brazil), Environ. Conserv.,
22(1), 7-19, Spring 1995.
Existing reservoirs emitted about 0.26 million tons of CH4 and 38 million
tons of CO2 in 1990. The total area of planned reservoirs is about 20 times the
area existing in 1990, implying a potential annual CH4 release of about 5.2
tons. About 40% of the estimated release is from underwater decay of forest
"Global Warming Potentials: The Case of Emissions from Dams,"
L.P. Rosa (Energy Planning Prog., Fed. Univ. Rio de Janeiro, CP 68565, Ilha
Fundao 21945-970 Rio de Janeiro RJ, Brazil), R. Schaeffer, Energy Policy,
23(2), 149-158, Feb. 1995.
Applies an alternative global warming potential index to emissions from
hydroelectric reservoirs in Brazil. For the cases studied, hydroelectricity
contributes less to the greenhouse effect over the long-term than fossil-fuel
"Agriculture's Share in the Emission of Trace Gases Affecting the
Climate and Some Cause-Oriented Proposals for Sufficiently Reducing This Share,"
K. Isermann (Agric. Res. Sta. BASF Aktiengesellschaft, POB 220, W-6703
Limburgerhof, Ger.), Environ. Pollut., 83, 95-111, 1994.
Agriculture's contribution to anthropogenic emissions are >95% for NH3,
81% for N2O, 70% for CH4, 52% for CO, 35% for NOx and 21% for CO2. The main
contributors to the global warming potential of agriculture are changing land
use (CO2), and animal husbandry, rice cropping and biomass burning (CH4).
Proposals for reducing emissions include more efficient use of nutrients,
cessation of clearing by burning, and intensified afforestation.
"China's Greenhouse Gas Emissions," V. Smil (Dept. Geog., Univ.
Manitoba, Winnipeg MB R3T 2N2, Can.), Global Environ. Change, 4(4),
325-332, Dec. 1994.
Already the world's second largest producer of greenhouse emissions, China
will continue to increase its emissions during the coming generation and will
almost inevitably lead the world by 2025. Heavy reliance on coal will more than
double its recent CO2 emissions, and increased food production will lead to
greater agricultural releases of methane and nitrous oxide.
Guide to Publishers
Index of Abbreviations