How? They know it is there so they think and work hard to come up with ways to get it out. Why? To make money and to piss off the kind of people that work at Slate.
Arent the oil companies being unfair to ethanold, wind and solar? They will now need bigger subsidies (from oil company taxes) so they can save the planet.
After all, if they went back to producing corn and wheat the price of food might be affordable to the poor and then there would be no need for food stamps. That would be so terrible.