The Partnership for Policy Integrity (PFPI) uses science, legal action, and strategic communications to promote sound energy policy.


Founded in 2010 by Dr. Mary Stuart Booth, an ecologist formerly at the Environmental Working Group (EWG), and Richard Wiles, a co-founder of EWG, PFPI provides science and legal support so that citizen groups, environmental organizations, and policymakers can better understand energy development impacts on air quality, water quality, ecosystems, and the climate.  Our current work focuses on biomass energy, oil and natural gas drilling, and hydraulic fracturing. 





Dr. Mary S. Booth, PhD.  Director.  Dr. Booth received her Bachelor’s and Masters’ degrees at the University of Massachusetts, and her doctoral degree in Ecology at Utah State University, focusing on biogeochemistry and plant ecophysiology. She completed postdoctoral fellowships at the Ecosystems Center at the Woods Hole Biological Laboratory and the Earth Institute at Columbia University.  She currently directs PFPI’s science and advocacy work on greenhouse gas, air pollutant, and forest impacts of biomass energy.



Dusty Horwitt  Senior Counsel. A veteran of energy policy, attorney Horwitt has used his experience in journalism, law and politics to conduct investigative research and advocacy on metal mining, oil and natural gas drilling and hydraulic fracturing. His work helped protect the Grand Canyon and Colorado River from uranium mining and the state of New York from unsafe shale gas drilling.  He has testified on metal mining reform before the U.S. House of Representatives Committee on Natural Resources and the U.S. Senate’s Committee on Energy and Natural Resources.  He has testified on natural gas drilling and hydraulic fracturing before the New York City Council and local government panels in Ohio, Pennsylvania and Virginia. Horwitt worked at Earthworks and Environmental Working Group as an analyst and senior counsel, as a reporter at the City News Bureau of Chicago and as a congressional staff member.  He graduated from Brown University with a B.A. in History and holds a J.D. from Georgetown University. He is a member of the Virginia State Bar.



Joy Bergey Clean Energy Outreach Manager. A life-long Pennsylvanian, Bergey has worked for the past 15 years on clean energy and climate change issues at the regional, state, and federal levels. She staffed the Pennsylvania Interfaith Climate Change Campaign, and then spent a dozen years with PennFuture, first as global warming outreach coordinator and then as federal policy director. She has testified before the Pennsylvania General Assembly’s Environmental Resources and Energy Committee and at numerous state and federal agency hearings, and was a credentialed delegate at the UN’s COP11 climate negotiations in Montreal in 2005. Bergey has served on environmental task forces at the county and local levels. In her first career, Bergey did supply chain consulting. She graduated from the University of Pennsylvania with a B.A. in Biology.