Bill Cohen

Center Coordinator

Before settling in Philadelphia, Bill spent three years teaching English in Thailand, Spain and France. In 2010 he served as the liaison for high schools from five European countries on a successful E.U. grant proposal, creating an exchange program for students pursuing alternative energy research. When he returned to the States, Bill helped start a local, artisan food company, Righteous Felon. In addition to Bill’s position with the Kleinman Center, he is pursuing a Master of Science in Applied Geoscience at Penn, focusing on sustainable development and green stormwater infrastructure.

Cornelia Colijn

Deputy Director

Cory joins the Kleinman Center team from Penn’s Professional Programs in Earth and Environmental Science, where she served as the administrative director. Prior to coming to Penn, she worked for several Philadelphia-based nonprofits, focusing on the ecological restoration of Philadelphia’s extensive park system. Cory holds a Master of Science in Applied Geoscience and a B.A. in Earth and Environmental Science, both from Penn.

Mark Alan Hughes

Faculty Director

Dr. Mark Alan Hughes is a Professor of Practice at the University of Pennsylvania’s School of Design and founding Faculty Director of the Kleinman Center for Energy Policy. He is also the founding Faculty Director of the Fels Policy Research Initiative at Penn’s School of Arts and Sciences, a Faculty Fellow of the Penn Institute for Urban Research, a Senior Fellow of the Wharton School’s Initiative for Global Environmental Leadership, and a Distinguished Scholar in Residence at Penn’s Fox Leadership Program. Hughes joined the standing faculty of Princeton University’s Woodrow Wilson School in 1986 at the age of 25 and joined the Penn faculty in 1999. He has published in the leading journals of economic geography, urban economics, political science, policy analysis, and won the National Planning Award for his research in city and regional planning. Hughes was Chief Policy Adviser to Mayor Michael A. Nutter and the founding Director of Sustainability for the City of Philadelphia, where he led the creation of the Greenworks Plan. He has designed and fielded national policy research projects in a variety of areas including the Bridges to Work program in transportation, the Transitional Work Corporation in job training and placement, the Campaign for Working Families in EITC participation, and the Energy Efficient Buildings Hub in regional economic development. This work has been funded by H.U.D., H.H.S., D.O.E., Ford, Rockefeller, Pew, Casey, WmPenn, and others.

Dr. Hughes earned a Ph.D. in Regional Science from the University of Pennsylvania, and a B.A. from Swarthmore College.


Angela Pachon

Research Director

Angela comes to the Kleinman Center with over 10 years of international experience as a regulatory economist. From 2006-2012, Angela was a policy advisor to the Ontario Energy Board where she participated in the development of regulatory initiatives for gas and electricity utilities. Prior to that, she served as an analyst and consultant at NERA Economic Consulting in London, England, where she also received her Master of Science in Local Economic Development from the London School of Economics. Angela’s B.S. degree is from Pontificia Universidad Javeriana, Bogota, Colombia.

Lindsey Samahon

Director of Communications

Lindsey a journalist and digital content producer with more than 20 years of experience telling stories online, in print, and on TV. She is the former managing editor of and former director of PBS Parents. Lindsey also worked at U.S. News & World Report, where she helped launch the first university rankings online. Prior to joining the Penn community, Lindsey ran her own digital media consulting company, working with media companies (like NBCUniversal), nonprofits, and small businesses. She holds a master’s degree in journalism from the Medill School of Journalism at Northwestern University.

Christina Simeone

Director of Policy and External Affairs

Prior to joining the Kleinman Center, Christina served as the Director of the PennFuture Energy Center for Enterprise and the Environment, where she focused on energy and climate issues that impact Pennsylvania. Additionally, Christina has experience in private environmental consulting, in the financial management sector, with the PA Department of Environmental Protection, and with the Alliance for Climate Protection, where she served as the Policy Director.  She holds a Master of Environmental Studies degree from Penn, a B.A. in Economics from the University of Miami, and B.S. in Music from Drexel University. 

Mollie Simon

Administrative Assistant

Prior to joining the Kleinman Center, Mollie worked in environmental advocacy at both national and local non-profit organizations. She served as the Climate and Energy Fellow at the National Wildlife Federation in Washington, D.C. and the Outreach Coordinator at Clean Air Council in Philadelphia. Her work was primarily focused on Clean Power Plan implementation and regulation of methane emissions from the natural gas sector. In addition to her position with the Kleinman Center, Mollie is currently pursuing a Masters of Environmental Studies at Penn with a Policy concentration. 

Oscar Serpell

Research Associate

Before joining the Kleinman Center, Oscar Serpell received a Masters in Environmental Studies and a B.A. in Environmental Management, both from the University of Pennsylvania. Oscar has written as a guest contributor for the Penn Sustainability Review and received the Elaine B. Wright Award for Excellence in Applying Environmental Studies to Community Service. Oscar has held several student teaching and administrative positions in the Department of Earth and Environmental Science, the Department of Anthropology, and the Center for Excellence in Environmental Toxicology.