"… forms of energy development, known as fracking, have financial ties to the natural gas industry, scientists and some environmental groups are asserting. The scie …"

"… ions of airborne contaminants.While the Energy Department doesn't regulate natural gas production, the Environmental Protection Agency is still months from reach …"

"… he ground to break up the earth below in order to release and then capture natural gas. Critics say fracking could be tainting groundwater, killing wildlife and, …"

"… ier this year, in his State of the Union address, President Obama endorsed natural gas as part of the solution to feed the nation's energy needs, and then sought …"