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Just love it - all of the "clean" technologies touted in this article are all "not quite ready". But coal and corn are - can I guess why they are being chosen? Anyone here understand economics? Who in their right mind would build a plant to produce ethanol using natural gas - whose price is going up and supply is going down.
19% better is still pretty good for a first step. Why whine about only "some" improvement when you can at least take a step forward - and lessen dependence on foreign oil at the same time. Work on the other technologies and pony up the money for a demo plant to show they work. Good enough may not be perfect - but it is certainly better than nothing.