Fracking - a natural gas extraction process - has always been a source of controversy for environmental activists. Now, concerns about the safety of gas drilling in the Marcellus Shale have skyrocketed, in light of a recent scientific study, which concluded that chemicals used in fracking can seep into and poison drinking water far more quickly and easily than previously thought.
In the new study, published three weeks ago in the monthly environmental research journal Ground Water, scientists suggested that, although certain layers of rock would keep the fluid, which contains benzene and other hazardous chemicals, those chemicals would reach the surface within merely a few years, and then taint any nearby water.
Scientists arrived at such a conclusion based on computer modeling, which analyzed the natural faults and fractures in the Marcellus Shale.
The study's computer modeling also predicted how fracking fluids would move over time, and concluded that fracking will drastically speed up the movement of underground chemicals from previous drilling, drawing them to the surface at a much more rapid rate than initially thought.
Read more @: Study exposes fracking?s poisonous effects » peoplesworld
My opinion this way of extracting national gas needs more regulations. Its not a safe way to extract natural gas and we should invest in more green and safe alternatives.