Abstract
We present a simple model to account for the potential effectiveness of solar radiation management (SRM) in compensating for anthropogenic climate change. This method provides a parsimonious way to account for regional inequality in the assessment of SRM effectiveness and allows policy and decision makers to examine the linear climate response to different SRM configurations. To illustrate how the model works, we use data from an ensemble of modeling experiments conducted with a general circulation model (GCM). We find that an SRM scheme optimized to restore population-weighted temperature changes to their baseline compensates for 99% of these changes while an SRM scheme optimized for population-weighted precipitation changes compensates for 97% of these changes. Hence, while inequalities in the effectiveness of SRM are important, they may not be as severe as it is often assumed.
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References
Bala G, Caldeira K, Nemani R (2010) Fast versus slow response in climate change: implications for the global hydrological cycle. Clim Dyn 35(2–3):423–434
Ban-Weiss GA, Caldeira K (2010) Geoengineering as an optimization problem. Environ Res Lett 5:034009, 9 pp
Blackstock JJ, Long JCS (2010) The politics of geoengineering. Science 327(5965):527. doi:10.1126/science.1183877. Accessed 29 January 2010
Blackstock J, Battisti DS, Caldeira K, Eardley DM, Katz JI, Keith DW, Patrinos AAN, Schrag DP, Socolow RH, Koonin SE (2009) Climate engineering responses to climate emergencies, Novim
Caldeira K, Wood L (2008) Global and arctic climate engineering: numerical model studies. Philos Trans R Soc A 366:4039–4056
Keith DW, Parsons E, Morgan MG (2010) Research on global sun block needed now. Nature 463:426–427
Giorgi F, Francisco R (2000) Evaluating uncertainties in the prediction of regional climate change. Geophys Res Lett 27(9):1295–1298
Nakicenovic N, Sturat R (2000) IPCC special report on emission scenarios. Cambridge University Press
Nordhaus W (2006) Geography and macroeconomics: new data and new Findings. Proc Natl Acad Sci 103:3510–3517
Nordhaus W (2008) A question of balance: weighing the options on global warming policies. Yale University Press, 234 pp
NRC committee on stabilization targets for atmospheric greenhouse gas concentrations, climate stabilization targets: emissions, concentrations, and impacts over decades to millennia. The National Academies Press. ISBN:0-30915177-5. Available at http://www.nap.edu/catalog/12877.html
Randall DA et al (2007) IPCC Climate change 2007: the physical science basis
Rasch P, Crutzen P, Coleman D (2008) Exploring the geoengineering of climate using stratospheric sulfate aerosols: the role of particle size. Geophys Res Lett 35:L02809, 6 pp
Ricke KL, Morgan MG, Allen MR (2010) Regional climate response to solar radiation management. Nature Geosciences 3:537–541
Robock A, Oman L, Stenchikov G (2008) Regional climate responses to geoengineering with tropical and Arctic SO2 injections. J Geophys Res 113:D16101
Robock A, Bunzl M, Kravitz B, Stenchikov GL (2010) A test for geoengineering. Science 327(5965):530–531
Shepherd J, Caldeira K, Haigh J, Keith D, Launder B, Mace G, MacKerron G, Pyle J, Rayner S, Redgwell C, Watson A (2009) Geoengineering the climate: science, governance and uncertainty. The Royal Academy
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Moreno-Cruz, J.B., Ricke, K.L. & Keith, D.W. A simple model to account for regional inequalities in the effectiveness of solar radiation management. Climatic Change 110, 649–668 (2012). https://doi.org/10.1007/s10584-011-0103-z
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DOI: https://doi.org/10.1007/s10584-011-0103-z