“Unconventional gas produced in the Marcellus has the lowest aspwv1970-01-01T00:00:00-05:00January 1st, 1970|Twitter| “Unconventional gas produced in the Marcellus has the lowest methane emission rates in the nation,” a PennState sci… https://t.co/CKxYn0YRVi Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTumblrPinterestVkEmail