Is ethanol really a green fuel?

That depends on how it is made. Regardless though, you can bet a lot of greenies will jump on the ethanol bandwagon, as will the corporate corn farmers. There's nothing like government subsidies to have corporate CEOs falling over themselves to act green. (And remember folks, the essential nature of acting is that it is all pretend.)

Still, anything that reduces the need to pump oil out of the ground is a good thing. If I'm going to be peon to a baron, I'd rather it be a corn baron than an oil baron.