Each of the topics below provides background information on the issues associated with extraction of natural gas from the Marcellus Shale. Click on each link to access each page. Start with the main text which provides a general overview of the issue and focus on the essays from the water resource guides. The guides are people (experts!) working in, living in, and researching the Marcellus Shale region. They’ll describe hydraulic fracturing in detail, discuss who regulates water use in PA and why, and share their views about some of the potential environmental impacts associated with drilling. If time allows, or you have computer access at home, you can jump into the issues in-depth using the additional background resources at the end of each page.