To frack or not to frack djpicard@duke.edu Wed, 11/04/2015 - 8:44 AM Language English Short title To frack or not to frack News type Clip Publish date Tue, 11/03/2015 - 7:00 PM Source URL http://www.torontosun.com/2015/11/03/to-frack-or-not-to-frack Featuring Avner Vengosh Source Toronto Sun