/news/tags/drexel-university Drexel University en-US Copyright Tue, 14 Feb 2017 17:12:03 GMT /news/environment-energy/2017-02-14/a-new-study-finds-elevated-background-methane-levels-in-shale-gas-area EDITOR'S NOTE: The original version of this story incorrectly said Bentley Systems was a funder of the research. Also, the research shows carbon monoxide… Tue, 14 Feb 2017 17:12:03 GMT /news/environment-energy/2017-02-14/a-new-study-finds-elevated-background-methane-levels-in-shale-gas-area