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Sources and Sinks of Greenhouse Gases in Sweden: A Case Study

Henning Rodhe, Hillevi Eriksson, Kerstin Robertson and Bo H. Svensson
Ambio
Vol. 20, No. 3/4 (May, 1991), pp. 143-145
Published by: Springer on behalf of Royal Swedish Academy of Sciences
Stable URL: http://www.jstor.org/stable/4313802
Page Count: 3
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Sources and Sinks of Greenhouse Gases in Sweden: A Case
                            Study
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Abstract

Swedish inventories of sources and sinks of greenhouse $\text{gases}-{\rm CO}_{2}$, CH4, N2 O and CFCs-are presented. We compare their contribution to the greenhouse effect with due regard to their radiative properties and lifetimes in the atmosphere. If the gross anthropogenic emissions of CO2 and CH4 are considered, 50-60% of the total effect is due to CO2. The second most important gas is CH4. In a short-term perspective (20 years) the contribution of CH4 is almost 30%. If the current accumulation of carbon by Swedish forests is subtracted from the direct emissions due to fossil-fuel combustion, the net contribution of CO2 is considerably smaller. Similarly, one may include a reduction of the CH4 emission due to man-made drainage of wetlands in the balance. This reduces the anthropogenic CH4 emission by almost 50%. Calculating in this way (i.e. net anthropogenic emissions), reduces the total Swedish anthropogenic emission of CO2 equivalents by almost 40%; CO2 is still the largest single contributor (40-45% of the total), but CFCs and N2 O become relatively more important.

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