The effect of "Fuel-Switching" on greenhouse gasses/global warming

note that estimated that leakage from gas infrastructure is likely to be underestimated. These studies indicate that the exploitation of natural gas as a "cleaner" fuel is questionable.

..and that study was done prior to the studies
the effect "Fracking" has regarding methane leakage.

Natural Gas isn't the savior of mankind it was
once hoped it would be, methane is a more
powerful greenhouse gas than Co2 emitting gasolene.