Photographers document the effect of natural gas drilling in Pennsylvania.

A gas-drilling rig in Hopewell Township area of Washington County. Nearby residents complained of extreme noise, seismic activity, and dust from truck traffic along with polluted air and water. June 21, 2010. Credit: Scott Goldsmith
A view of a natural gas pipeline under construction in Franklin Township. May 1, 2012. Credit: Noah Addis.
A view of the Sunoco Marcus Hook Refinery in Marcus Hook. The refinery, which has since been idled, is under construction as a potential site for a liquefied natural-gas terminal to process and export gas from the Marcellus Shale. September 11, 2011. Credit: Noah Addis
Carrie Hahn, an activist, talks to an Amish farmer about the hazards of allowing a gas-drilling operation on his land in Wilmington. October 21, 2011. Credit: Lynn Johnson
A flare from a natural gas well in Franklin Forks lights up the night sky behind a farmhouse that had leased its land to natural gas companies in 2011. December 20, 2011. Credit: Nina Berman
Ken Dufalla , of the Izaak Walton League, testing Ten Mile Creek for Bromides in Greene County, PA. Credit: Martha Rial
Dana Dolney, a breast cancer survivor, protests against gas drilling and the technique of hydraulic fracturing (fracking) outside Pennsylvania’s Department of Enviornmental Protection (DEP) office in Harrisburg, PA, where the Marcellus Shale Advisory Commission was holding a meeting. Credit: Nina Berman
Credit: Brian Cohen
Jeanne and her husband Llew purchased the 113-acre farm they named Red Barn Farm in 1995. Her father introduced her to farming in her teens when her family moved to Greene County. Auzre, one of Williams’ barn cats, explores the land overlooking pipeline construction. Credit: Martha Rial