Ruth DeFries (born 1957) is an environmental geographer who specializes in the use of remote sensing to study Earth's habitability under the influence of human activities, such as deforestation, that influence regulating biophysical and biogeochemical processes. She was one of 24 recipients of the 2007 MacArthur Fellowship, and was elected to the United States National Academy of Sciences in 2006.
DeFries received her Ph.D. in 1980 from the Department of Geography and Environmental Engineering at Johns Hopkins University and her B.A. in Earth Science in 1976 from Washington University. DeFries currently holds the Denning Family Chair in Sustainable Development in the Department of Ecology, Evolution, and Environmental Biology, at Columbia University as well as a professorship at the University of Maryland, College Park where she has joint appointments in the Department of Geography and the Earth System Science Interdisciplinary Center.
Also see Portal:Sustainable development
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- "Growth In Amazon Cropland May Impact Climate And Deforestation Patterns". ScienceDaily. 2006-09-22. Retrieved 2008-09-16.
- "Ruth DeFries biography". The Earth Institute, Columbia University. Retrieved 2008-09-16.
- "MacArthur Fellows 2007". The John D. and Catherine T. MacArthur Foundation. Retrieved 2008-09-16.
- Roylance, Frank D.; Emery, Chris (2007-09-25). "'Genius' rewarded: Hopkins physician, UM geographer are among 24 awarded $500,000 MacArthur grants for research.". Baltimore Sun. Retrieved 2008-09-16.
- "A Conversation with UM's Ruth DeFries, Newly Elected to the National Academy of Sciences". University of Maryland. Retrieved 2008-09-16.
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