If the state Legislature passes a severance tax on natural gas siphoned from the deep Marcellus Shale, the Pennsylvania Fish and Boat Commission should get a cut to cover its growing role in policing streams affected by water pollution, according to John Arway, the commission's executive director. (Yesterday)

LOS ANGELES -- The largest oil spill in U.S. history has unleashed a gusher of at least 250 class-action lawsuits that could eventually encompass millions of victims in a massive legal battle expected to stretch on for decades. (Yesterday)

The Port of Pittsburgh Commission has received a $1.15 million grant from the U.S. Environmental Protection Agency to install less-polluting diesel engines and generators in four towboats used on Pittsburgh area rivers. (07/28/2010)

WASHINGTON -- When PennEnvironment organizer Adam Garber got the news, he was sitting in a café in the Hart Senate Office Building with four energetic Pennsylvanians in town to lobby for a comprehensive climate bill. (07/28/2010)

KENNER, La. -- Even though significantly less crude is floating on the surface of the Gulf of Mexico, federal officials warned Tuesday that the region could still suffer long-term negative impacts from the spill, particularly from oil beneath the water's surface. (07/28/2010)