ThinkProgress: At least 10 percent of the contents of fracking fluid injected into the earth is toxic. For another third we have no idea. And that`s only from the list of chemicals the fracking industry provided voluntarily. That`s according to an analysis by William Stringfellow of Lawrence Berkley National Laboratory, reported in Chemistry World.
Hydraulic fracturing, or fracking, is the practice of injecting fluid at high pressure into the earth, which breaks up oil- and gas-filled rock formations that is...