The Pittsburgh Tribune-Review reports that according to a new study, defective cement casing, and not hydraulic fracturing, is likely responsible for methane from gas wells leaking into nearby water wells.
"We see this as good news for the long term," said lead author Tom Darrah, an Ohio State University scientist whose research was published Monday in the Proceedings of the Academy of Natural Sciences. "If we can improve well-integrity that can eliminate most of the environmental concerns."
You can read the complete study here.