Fracking is doable if there's full disclosure of all chemicals used. Secondly science dictates the policy rather than politics. Third there's collaboration between environmental groups and the natural gas industry.

Mark Ruffalo aka the Incredible Hulk is the natural gas industry's worst nightmare: a serious committed activist who is determined to use his star power as a superhero in the hottest movie of the moment to draw attention the environmental and public health risks of fracking.