Building a national infrastructure for NG powered cars (basically, adding NG tanks and compressed NG refueling dispensers to gas stations) would be a hell of a lot cheaper and better for the environment than building the electric highway infrastructure envisioned by the article or even pushing everyone to electric cars.
I am all for NG taking over coal, particularly since I live in a part of country that produces NG and not coal. But it should occur because of supply and demand and not because Obama has decided to bankrupt the coal industry in the name of the Global Warming scam.