PA ENV. DEFENSE FOUNDATION v. COM.

Attorney(s) appearing for the Case

Thomas Y. Au, Esq. , Diana Csank, Esq. , for Sierra Club, Amicus Curiae.

Thomas G. Collins, Esq. , Kevin Patrick Lucas, Esq. , David James Porter, Esq. , Buchanan lngersoll & Rooney, P.C., for Republican Caucuses of the PA House of Representatives and PA Senate, Amicus Curiae.

John C. Dernbach, Esq. , for Widener University Law School Environmental Law and Sustainability Center, Amicus Curiae.

Matthew Hermann Haverstick, Esq. , Mark Edward Seiberling, Esq. , Joshua John Voss, Esq. , for Pennsylvania Public Utility Commission, Amicus Curiae.

George Jugovic Jr., Esq. , for Citizens for Pennsylvania's Future, Penn Future, Amicus Curiae.

Kevin Jon Moody, Esq. , Pennsylvania Independent Oil and Gas Association, for PA Independent Oil & Gas Association, Amicus Curiae.

Jordan Berson Yeager, Esq. , Curtin & Eleefner LLP, for Delaware Riverkeeper Network and Pennsylvania Land Trust Association, Amicus Curiae.

John E. Childe Jr., Esq. , for Pennsylvania Environmental Defense Foundation, Appellant.

Sean Martin Concannon, Esq. , Office of General Counsel, Stephen S. Aichele, Esq. , Audrey F. Miner, Esq. , Pennsylvania Department of Conservation & Natural Resources (DCNR), for Wolf, Tom, Appellee.

Howard Greeley Hopkirk, Esq. , Office of Attorney General, for Commonwealth of Pennsylvania, Appellee.

Gregory R. Neuhauser, Esq. , PA Office of Attorney General, for Commonwealth of Pennsylvania and Wolf, Tom, Appellees.

SAYLOR, C.J., EAKIN, BAER, TODD, DONOHUE, DOUGHERTY, WECHT, JJ.