"Salty bromide concentrations in the Monongahela River, which had risen in 2009 and 2010 due, at least in part, to discharges of Marcellus Shale gas drilling wastewater by sewage treatment plants, returned to normal levels in 2011 and this year, according to a Carnegie Mellon University river monitoring study."

"An anonymous donor is giving Georgetown University $20 million to support a major initiative for the study of the environment, school officials say."

"PHILADELPHIA -- Pennsylvania officials reported incomplete test results that omitted data on some toxic metals that were found in drinking water taken from a private well near a natural gas drilling site, according to legal documents released this week."

"The Pennsylvania Department of Environmental Protection has created incomplete lab reports and used them to dismiss complaints that Marcellus Shale gas development operations have contaminated residential water supplies and made people sick, according to court documents and other sources."

"Animal rights activists filed a lawsuit on Thursday to try to stop a plan to cull deer in a Washington park, saying it would create a 'killing field' in the heart of the U.S. capital."

"SHIPPINGPORT, Pa. -- Chesapeake Energy has a permit to frack just one mile from the Beaver Valley Nuclear Power Station in Shippingport. Whether that is cause for alarm, experts can’t say."

"Already divided over the issues of climate change and sea-level rise, Delaware politicians, voters and communities now face a costly debate over short- and long-term rescue options for eroding beaches along the Delaware Bay and Delaware River."