Atmospheric Chemistry and Physics Discussions www.atmos-chem-phys-discuss.net 1680-7367 1680-7375 9 3 2009 10.5194/acpd-9-11087-2009 http://www.atmos-chem-phys-discuss.net/9/11087/2009/ http://www.atmos-chem-phys-discuss.net/9/11087/2009/acpd-9-11087-2009.html http://www.atmos-chem-phys-discuss.net/9/11087/2009/acpd-9-11087-2009.pdf 11087 11183 2009-05-05 Atmospheric aerosols in the earth system: a review of interactions and feedbacks K. S. Carslaw k.s.carslaw@leeds.ac.uk O. Boucher D. V. Spracklen G. W. Mann J. G. L. Rae S. Woodward M. Kulmala School of Earth and Environment, University of Leeds, Leeds, UK Met Office Hadley Centre, FitzRoy Road, Exeter, UK University of Helsinki, Department of Physics, Division of Atmospheric Sciences and Geophysics, Helsinki, Finland The natural environment is a major source of atmospheric aerosols, including dust, secondary organic material from terrestrial biogenic emissions, carbonaceous particles from wildfires, and sulphate from marine phytoplankton dimethyl sulphide emissions. These aerosols also have a significant effect on many components of the Earth system such as the atmospheric radiative balance and photosynthetically available radiation entering the biosphere, the supply of nutrients to the ocean, and the albedo of snow and ice. The physical and biological systems that produce these aerosols can be highly susceptible to modification due to climate change so there is the potential for important climate feedbacks. 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