A reader responds to an op-ed by two Penn State professors regarding the potential volume of shale gas, and the consequences of drilling for it. Below the op-ed, the professors address the writer’s concern.
In their op-ed “The Facts on Fracking” (Views, March 14), Susan Brantley and Anna Meyendorff use a highly speculative estimate of the gas supply in the Marcellus shale of Eastern America that prevailed for years at the U.S. Energy Department. Using actual results from drilled wells, in 2011 U.S. Using actual results from drilled wells, in 2011 U.S. government geologists slashed the Energy Department figures by about two-thirds.