Compared to coal, which generates almost half the electricity in the United States, natural gas is indeed a cleaner, less polluting fuel. But compared to, say, solar, it's filthy. And of course there is nothing renewable about natural gas.
Nobody disputes that cheap natural gas would be a good thing for the economy. The question is, is this a sustainable new development that can be counted on for decades to come, or simply a 'bubble' brought on by a land grab and drilling frenzy?
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.
Some studies have shown that natural gas could, in fact, be worse for the climate than coal.
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