Atmos. Chem. Phys. Discuss., 7, 15669-15692, 2007
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This discussion paper has been under review for the journal Atmospheric Chemistry and Physics (ACP). Please refer to the corresponding final paper in ACP.
Short-lived pollutants in the Arctic: their climate impact and possible mitigation strategies
P. K. Quinn1, T. S. Bates1, E. Baum2, N. Doubleday3, A. M. Fiore4, M. Flanner5, A. Fridlind6, T. J. Garrett7, D. Koch6, S. Menon8, D. Shindell6, A. Stohl9, and S. G. Warren10
1NOAA Pacific Marine Environmental Laboratory, Seattle, WA, USA
2Clean Air Task Force, Boston, MA, USA
3Carleton University, Ottawa, ON, Canada
4NOAA Geophysical Fluid Dynamics Laboratory, Princeton, NJ, USA
5National Center for Atmospheric Research, Boulder, CO, USA
6NASA Goddard Institute for Space Sciences, New York, NY, USA
7University of Utah, Salt Lake City, UT, USA
8Lawrence Berkeley National Laboratory, Berkeley, CA, USA
9Norwegian Institute for Air Research, Kjeller, Norway
10University of Washington, Seattle, WA, USA

Abstract. Several short-lived pollutants known to impact Arctic climate may be contributing to the accelerated rates of warming observed in this region relative to the global annually averaged temperature increase. Here, we present a summary of the short-lived pollutants that impact Arctic climate including methane, tropospheric ozone, and tropospheric aerosols. For each pollutant, we provide a description of the major sources, the mechanism of forcing, seasonally averaged forcing values for the Arctic, and the corresponding surface temperature response. We suggest strategies for reducing the warming based on current knowledge and discuss directions for future research to address remaining uncertainties.

Citation: Quinn, P. K., Bates, T. S., Baum, E., Doubleday, N., Fiore, A. M., Flanner, M., Fridlind, A., Garrett, T. J., Koch, D., Menon, S., Shindell, D., Stohl, A., and Warren, S. G.: Short-lived pollutants in the Arctic: their climate impact and possible mitigation strategies, Atmos. Chem. Phys. Discuss., 7, 15669-15692, doi:10.5194/acpd-7-15669-2007, 2007.
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