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The climatic impacts of land surface change and carbon management, and the implications for climate-change mitigation policy |
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| Authors: | Gregg Marland Roger A Pielke Sr |
| Institution: | a Environmental Sciences Division, Oak Ridge National Laboratory, Bethel Valley Road, Oak Ridge, TN 37831-6335, USA b Department of Atmospheric Science, Colorado State University, Fort Collins, CO, USA c Canadian Forest Service, Natural Resources Canada, Victoria, BC, Canada d Department of Civil and Environmental Engineering, Duke University, Durham, NC, USA e Met Office, Hadley Centre for Climate Prediction Bracknell, Berkshire, UK f Department of Meteorology, Pennsylvania State University, University Park, PA, USA g Union of Concerned Scientists, Cambridge, MA, USA h Department of Botany, University of Wyoming, Laramie, WY, USA i Rocky Mountain Research Station, USDA Forest Service, Fort Collins, CO, USA j University of Helsinki, Helsinki, Finland k Aspen Global Change Institute, Aspen, CO, USA l Forestry Research and Development, Riau Forestry, Riau, Indonesia m USDA Forest Service, Corvallis, OR, USA n Energy and Resources Group, University of California, Berkeley, CA, USA o Department of Marine, Earth, and Atmospheric Sciences, N.C. State University, Raleigh, NC, USA p Pew Center on Global Climate Change, Arlington, VA, USA q The Sampson Group Inc., Arlington, VA, USA r Geography Department, University of California, Los Angeles, CA, USA |
| 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. |
| Keywords: | Climate change Carbon sequestration Land use change Land surface change Surface energy balance |
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