The Glass research group studies the microbes that made Earth habitable, and, more specifically, the microbial mechanisms underpinning cryptic transformations of methane and nitrous oxide in oxygen-free ecosystems. Why focus on the microbial world? The Earth has been constantly inhabited for four billion years. For three-quarters of that time, life was solely microbial. Ancient microbes produced the gases that warmed the planet to clement temperatures when the sun was faint, and that invented the molecular machines that drive biogeochemical cycles. The co-evolution of Earth and life is woven into the fabric of our research group, which examines the interplay between microbes and the greenhouses gases that control planetary temperature. Our research informs the microbial metabolisms that (i) made the early Earth habitable for life, (ii) make the deep subsurface habitable for life, (iii) serve as biosignatures for life on exoplanets, and (iv) play crucial roles in regulating atmospheric fluxes of greenhouse gases on our warming planet.

Tim Lieuwen is the executive vice president for research (EVPR) at the Georgia Institute of Technology. In this role, he oversees the Institute’s $1.4+ billion portfolio of research, economic development, and sponsored activities. This includes leadership of the Georgia Tech Research Institute (GTRI), the Enterprise Innovation Institute, 11 interdisciplinary research institutes (IRIs), and related research administrative support units.

In his 25-plus years at Georgia Tech, Lieuwen earned his master's and Ph.D. degrees in mechanical engineering (1996 and 1999, respectively) and has held multiple leadership positions. He has been the executive director of the Strategic Energy Institute (SEI) and served as the interim chair of the Daniel Guggenheim School of Aerospace Engineering in 2023.

Lieuwen has received numerous honors and recognition for his work in clean energy systems and policy, national security, and regional economic development. Additionally, he has been awarded the titles of Regents’ Professor and the David S. Lewis, Jr. Chair in AE. He is also a member of the National Academy of Engineering and is a fellow of the American Society of Mechanical Engineers and the American Institute of Aeronautics and Astronautics.

Vicki L. Birchfield is a Professor in The Sam Nunn School of International Affairs at Georgia Tech, Co-Director of the Center for European and Transatlantic Studies and Director of the study abroad program on the European Union and Transatlantic Relations. Dr. Birchfield received a DES from the Graduate Institute of International Studies from the University of Geneva, Switzerland (1993) and a Ph.D. in Political Science from the University of Georgia (2000). She is the author of Income Inequality in Capitalist Democracies: The Interplay of Values and Institutions(Penn State University Press 2008), Triangular Diplomacy among the United States, The European Union, and The Russian Federation: Responses to the Crisis in Ukraine (Palgrave Macmillan 2017) co-edited with Alsadair Young, Reporting at the Southern Borders: Journalism and Public Debates in the US and the EU co-edited with Giovanna Dell'Orto (Routledge 2014) and Toward a Common EU Energy Policy: Problems, Progress, and Prospects(Palgrave Macmillan 2011) co-edited with John S. Duffield. She has published articles in International Studies Quarterly, European Journal of Political Research, the Review of International Studies, Journal of European Public Policy, British Journal of Politics and International Relations, Globalizations, and the Review of International Political Economy. Her research and teaching specializations are European politics, the European Union, comparative politics, and international political economy. Other research and intellectual interests include the interplay of capitalism and democracy, social movements and the politics of globalization, and transatlantic relations. She has been a visiting scholar at Sciences Po, Paris and the University of Bordeaux and in 2012 was bestowed the honor of “Chevalier dans l’Ordre National du Mérite” (Knight in the National Order of Merit) by the French government.

Dr. Belton is an Associate Professor and Director of Undergraduate Programs in the School of Economics. Professor Belton’s initial training and research focus was on issues of monetary policy and how policy design and implementation impacts the cyclical behavior of the macro-economy. Currently, Professor Belton is involved in multidisciplinary analysis which examines the impact of political, cultural, and economic institutions on downstream outcomes of income distribution, business development, and social behavior. This research brings together issues of public policy, international affairs and economics to examine and developed much more broad theories of economic, political, and social development across ethnic groups and nation-states.

Ellen is Director of the Master of Science in Urban Design degree, an authority on sustainable suburban redevelopment, and a leading urbanist. Author of over 100 articles, she is co-author with June Williamson of the retrofitting suburbia book series documenting successful retrofits of aging big box stores, malls, and office parks into healthier and more sustainable places. Retrofitting Suburbia: Urban Design Solutions for Redesigning Suburbs, (Wiley, 2009, 2011) received a PROSE award as the best architecture and urban planning book of 2009 and has been featured in The New York Times, Time Magazine, Harvard Business Review, NPR, PBS, TED and other prominent venues. Case Studies in Retrofitting Suburbia: Urban Design Strategies for Urgent Challenges (Wiley, 2020) expands on the first book examining how new retrofits are helping communities disrupt automobile dependence, improve public health, support an aging population, leverage social capital for equity, compete for jobs, and add water and energy resilience. 

Ellen serves on several national boards and committees, is former Chair of the Board of the Congress for the New Urbanism, lectures widely and conducts community workshops. In both her teaching and research she focuses on helping communities address new challenges that they were never designed for – whether that’s through her unique database of successful suburban retrofits or studio classes on anticipating autonomous vehicles, coping with climate change or suburban blight. She taught at UVA and MIT before joining Georgia Tech as Architecture Program Director from 2000-2009.