Dr. Colwell is a member of the National Academy of Sciences; the Royal Swedish Academy of Sciences, Stockholm; the American Academy of Arts and Sciences; and the American Philosophical Society. Dr. Colwell holds a B.S. in bacteriology and an M.S. in genetics from Purdue University, and a Ph.D. in oceanography from the University of Washington.


ANTHONY C. JANETOS has been vice president of the Heinz Center since March 2003; he joined the center as a senior fellow in June 2002. Dr. Janetos also directs the center’s Global Change Program. Before coming to the Heinz Center, he served as vice president for science and research at the World Resources Institute and senior scientist for the Land-Cover and Land-Use Change Program in the National Aeronautics and Space Administration (NASA) Office of Earth Science. He was also program scientist for NASA’s Landsat 7 mission. He was a co-chair of the U.S. National Assessment of the Potential Consequences of Climate Variability and Change and an author of the International Panel for Climate Change Special Report on Land-Use Change and Forestry and the Global Biodiversity Assessment. Dr. Janetos is chair of the National Research Council (NRC) Panel on Earth Science Applications and Societal Needs. Dr. Janetos graduated magna cum laude from Harvard College with a bachelor’s degree in biology and earned a master’s degree and a Ph.D. in biology from Princeton University.


CHRISTIAN J. JOHANNSEN is professor emeritus of agronomy and director emeritus of the Laboratory for Applications of Remote Sensing (LARS) at Purdue University. Dr. Johannsen first joined the agronomy faculty at Purdue University in 1963. He served as a program leader of LARS from 1966 to 1972. From 1972 to 1985, he held research and extension positions at the University of Missouri and was a visiting scientist at the University of California (1980-1981). In 1985, he returned to Purdue University as director of the Agricultural Data Network. From 1988 to 1996 he served as director of the Natural Resources Research Institute (renamed the Environmental Sciences and Engineering Institute in 1994), which had LARS within its structure. In 1996-1997, he was a visiting chief scientist with Space Imaging Inc. developing agricultural applications of remote sensing. He has served on many national and international committees and activities including the NRC Committee on the Geographic Foundation for Agenda 21 (2001-2003), the Steering Committee for Space Applications and Commercialization (1999-2003), the Space Studies Board (1998-2001), and the Committee on Earth Studies (1995-1998).


MARC LEVY is associate director for science applications at the Center for International Earth Sciences Information Network (CIESIN) and is an



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