Pittsburgh Post-Gazette: First, the bad news. There is broad agreement that methane emissions from natural gas development in Pennsylvania and other states are a serious problem. Methane is a highly potent greenhouse gas and, absent adequate controls, methane leaks across the natural gas supply chain could undo many of the potential environmental benefits natural gas can have over other fossil fuels like coal. But there appears to be a disconnect about what is being done today to assess and regulate these emissions in the...