Timothy Griffin is an Associate Professor at the Friedman School of Nutrition Science and Policy, Tufts University.  At the Friedman School, he is Division Chair – Agriculture, Food and the Environment, and teaches classes on U.S. agriculture, and agricultural science and policy.  In 2018, he was also named as the inaugural recipient of an professorship in Nutrition, Agriculture, and Sustainable Food Systems.  His current research focuses on assessment of sustainability across environmental, social and economic metrics, regional food systems, and climate change impacts on agriculture. He supervises doctoral students conducting research on topics ranging from precision agriculture to food access to water rights.  He served as an Advisor to the 2015 Dietary Guidelines Advisory Committee, focusing on Sustainability, and recently completed work as a member of the National Academy of Sciences study Genetically Engineered Crops: Experiences and Prospects.  Prior to coming to the Friedman School, he served as Lead Scientist/Agronomist at USDA-Agricultural Research Service (2000-2008) and Extension Specialist in Sustainable Agriculture at the University of Maine (1992-2000), the first such position in the U.S.