New York Times: In a last-ditch effort to block construction of a controversial natural gas pipeline in northeastern Pennsylvania, campaigners urged an interstate regulator on Friday to review the projects environmental impact. The 44-mile section of pipeline, the Northeast Upgrade, would become part of a longer pipeline moving natural gas extracted from the Marcellus Shale in northern Pennsylvania to a terminal in Mahwah, N.J. In a letter, the Delaware Riverkeeper Network, an environmental group, urged the Delaware...