Senior Associate Dean of Dean of the Faculty, Professor of Earth, Environmental, and Planetary Sciences

Overview

I received my Ph.D. in Ecology from the University of MN in 2004, completed a PostDoc at the Large Lakes Observataory, and started at Brown in 2006. I am a geochemist, paleoecologist, and climate scientist with broad interest in climate and environmental change in the tropics. My research group uses lipid biomarkers – organic compounds preserved in sediments – to reconstruct temperature, rainfall, and ecological change in tropical Africa, southeast Asia, and South America. We have pioneered techniques to reconstruct continental temperature, and use a variety of stable isotope methods, alongside climate models, to reconstruct spatiotemporal variations in rainfall. Our current projects include analyses of the Plio-Pleistocene evolution of the North African monsoon and ecological impacts of Pleistocene and Holocene climate change in tropical Africa and South America.

Brown Affiliations

Research Areas

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