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The climatic impacts of land surface change and carbon management, and the implications for climate-change mitigation policy

Gregg MarlandEnvironmental Sciences Division, Oak Ridge National Laboratory , Bethel Valley Road, Oak Ridge, TN, 37831-6335, USARoger A. PielkeDepartment of Atmospheric Science , Colorado State University , Fort Collins, CO, USAMike AppsCanadian Forest Service, Natural Resources Canada , Victoria, BC, CanadaRoni AvissarDepartment of Civil and Environmental Engineering , Duke University , Durham, NC, USARichard BettsMet Office, Hadley Centre for Climate Prediction Bracknell , Berkshire, UKK. J. DavisDepartment of Meteorology , Pennsylvania State University , University Park, PA, USAPeter C. FrumhoffUnion of Concerned Scientists , Cambridge, MA, USAStephen T. JacksonDepartment of Botany , University of Wyoming , Laramie, WY, USALinda A. JoyceRocky Mountain Research Station , USDA Forest Service , Fort Collins, CO, USAPekka E. KauppiUniversity of Helsinki , Helsinki, FinlandJohn KatzenbergerAspen Global Change Institute , Aspen, CO, USAK.G. MacDickenForestry Research and Development, Riau Forestry , Riau, IndonesiaRonald P. NeilsonUSDA Forest Service , Corvallis, OR, USAJohn O. NilesEnergy and Resources Group , University of California , Berkeley, CA, USADev NiyogiDepartment of Marine, Earth, and Atmospheric Sciences , N.C. State University , Raleigh, NC, USARichard J. NorbyEnvironmental Sciences Division, Oak Ridge National Laboratory , Bethel Valley Road, Oak Ridge, TN, 37831-6335, USANaomi PeñaPew Center on Global Climate Change , Arlington, VA, USANeil SampsonThe Sampson Group Inc. , Arlington, VA, USAYongkang XueGeography Department , University of California , Los Angeles, CA, USA

2003en

ABI

Annotatsiya

Abstract Strategies to mitigate anthropogenic climate change recognize that carbon sequestration in the terrestrial biosphere can reduce the build-up of carbon dioxide in the Earth's atmosphere. However, climate mitigation policies do not generally incorporate the effects of these changes in the land surface on the surface albedo, the fluxes of sensible and latent heat to the atmosphere, and the distribution of energy within the climate system. Changes in these components of the surface energy budget can affect the local, regional, and global climate. Given the goal of mitigating climate change, it is important to consider all of the effects of changes in terrestrial vegetation and to work toward a better understanding of the full climate system. Acknowledging the importance of land surface change as a component of climate change makes it more challenging to create a system of credits and debits wherein emission or sequestration of carbon in the biosphere is equated with emission of carbon from fossil fuels. Recognition of the complexity of human-caused changes in climate does not, however, weaken the importance of actions that would seek to minimize our disturbance of the Earth's environmental system and that would reduce societal and ecological vulnerability to environmental change and variability. © 2003 Elsevier Science Ltd. All rights reserved.

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DOI: 10.3763/cpol.2003.0318

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