7-30-13: Maryland's emissions standards, Point Lookout prison camp, and "Dungeonesse"

Summary: Governor O'Malley has laid out his plan for combating climate change. But Maryland is just one state—with a lot of coastline, and a lot of neighbors. How much impact can one state make on a global problem? We ask marine scientist Don Boesch of the University of Maryland. Then, 150 years ago this week, the Union Army took action to deal with some of the thousands of Confederate prisoners it had taken less a month earlier at the Battle of Gettysburg: The Union set up a huge prison camp deep in Southern Maryland to hold rebel POWs. We talk about it with Bob Crickenberger, a long-time volunteer ranger at Point Lookout State Park. And, Tom Hall talks with Baltimore musicians Jon Ehrens and Jenn Wasner about their pop album collaboration, "Dungeonesse".