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This is an extended abstract of the paper. All the results shown are preliminary and incomplete. Do not quote without permission.

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Do Not Cite or Quote 78-197 Public Review Draft Chapter 3 Climate Change From Short-Lived Emissions Due to Human Activities 1657 1658 1659 166

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conference edited by Antonio Jose Teiga Zilhao. Draft 8 September 2003. Feel free to distribute but do not quote or cite. Feedback is welcome.

Permission is granted to quote short excerpts and to reproduce figures and tables from this report, provided that the source of such material is fully acknowledged.

Permission is granted to quote short excerpts and to reproduce figures and tables from this report, provided that the source of such material is fully acknowledged.