However, not everything about shale gas is an improvement, as its extraction process may contaminate ground water and release volatile compounds into the soil, while the use of shale gas will still lead to greenhouse gas (GHG) emissions.
Gayunpaman, hindi lahat ng bagay tungkol pisara gas ay isang pagpapabuti, tulad ng proseso ng pagkuha nito ay maaaring mahawa lupa tubig at bitawan salawahan compounds sa lupa, habang ang paggamit ng pisara gas ay humantong pa rin sa greenhouse gas (GHG) emissions.