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Science 9 December 2005:
Vol. 310. no. 5754, p. 1581
DOI: 10.1126/science.310.5754.1581j
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This Week in Science

Climate models are still only rather crude representations of real climate systems, and one class of important feedbacks not adequately realized in them is that of land processes. Fedemma et al. (p. 1674; see the Perspective by Pielke) investigate the role of biogeophysical land processes, which directly affect the absorption and distribution of energy at the Earth's surface, by integrating them into a global climate model. Increases in atmospheric CO2 concentrations during the next century and associated greenhouse gas-induced warming led to significant regional impacts directly associated with land cover, mostly in mid-latitude and tropical areas. However, global average temperature was not affected much by land cover change because regional variations that led to more or less warming tended to cancel out.




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Science. ISSN 0036-8075 (print), 1095-9203 (online)