Biogas needs real consideration as a truly clean alternative to natural gas

The only byproducts here are clean water and fertilizer.

By John Stolz, Director of the Center for Environmental Research and Education at Duquesne University, via Pittsburgh City Paper. 

Since 2004, there have been more than 11,000 natural-gas wells drilled in Pennsylvania. 

At the same time, natural gas prices have plummeted by 80 percent. Shell is building a petrochemical plant in Beaver County to use the ethane generated at wells. But at what cost?