Jose A. Marengo was supported by the Brazilian Conselho Nacional de Desenvolvimiento Cientifico e Tecnologico (CNPq), and Brant Liebmann was partly supported by a grant from the Pan American Climate Studies Program of the NOAA Climate and Global Change Program (GC96-946). The authors wish to thank the Inter American Institute for Global Change (IAI-ISP1) for providing partial funding for this research. Publication of this paper was possible throughout a grant from the Fundacao de Amparo a Pesquisa do Estado de São Paulo (FAPESP).
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