Puko writes that experts believe that "Drillers will target the Marcellus first, and, in most cases, come back for the Upper Devonian later, maybe generations from now."
Read that again. Generations from now.
What will Pennsylvania look like after several more decades of oil and gas exploration? Indeed, if you accept the proposition that we will likely dig up every last hydrocarbon and burn it before switching to zero-carbon energy, what will other shale gas states look like generations from now?
A 2011 EIA shale map
A 2012 USGS map of previously unassessed East Coast shales
What will shale gas states look like generations from now? The answer is up to all of us.