The Significance of Marcellus: A Commonwealth Perspective State DEP Working to Balance Environmental Challenges, Economic Opportunities of Marcellus Shale Drilling the Marcellus Shale promises economic opportunities, but respecting Pennsylvania’s environment can maximize the value of those benefits, says J. Scott Roberts, deputy secretary for mineral resources management at the state Department of Environmental Protection. “Meeting the environmental challenges from water re-use and disposal to site construction controls will allow Pennsylvanians to fully enjoy the economic opportunities of the Marcellus,” Roberts said. Roberts will explore both the opportunities and challenges presented in drilling the Marcellus Shale in this talk, the latest of this Spring's Earth Talks series. (Javascript is required to view Mediasite content)