After graduating from the University of Wisconsin-Madison in 1994, David immediately joined the staff of the Connecticut Public Interest Research Group as a Campus Organizer. In 1996, David moved to Philadelphia, where he became the Director for PennPIRG, and led environmental, consumer, and good government campaigns, until 2002. Since June of 2002, David has been the Director of PennEnvironment, and the PennEnvironment Research & Policy Center.
David focuses most of his energy working on protecting Pennsylvania from fracking, tackling climate change, and overseeing PennEnvironment’s environmental litigation. Over the years, David has been quoted in thousands of news stories about pressing environmental issues facing Pennsylvania and the nation, regularly lobbies state and federal decision makers, and develops and writes educational content like email alerts and fact sheets that are rolled out to hundreds of thousands of concerned Pennsylvanians.
Most recently, David has chaired the Clean Power PA coalition, a network of more than 50 environmental groups, clean energy business, and health, religious and civic organizations working to tackle climate change and promote clean energy. In 2015, David chaired Mayor-elect Jim Kenney’s transition team on the environment where he recruited a team of experts from across Philadelphia to create a set of sustainability policy recommendations for Mayor Kenney. David also sits on the board of the Philadelphia Chapter of Physicians for Social Responsibility (PSR).