Is ethanol dangerous for the environment?

Question

Is ethanol dangerous for the environment?

Answer 1

If you consume too much and go on a destructive rampage it is very bad for the environment.

Answer 2

Well, not really but it can oxidise in the lower atmosphere to give some unpleasant aldehydes.

It cannot be a gasoline substitute as the energy balance to grow and ferment corn is hopeless.  Biofuel is a hopeless Bush driven myth.

Best environment for ethanol is in a nice relaxing glass of red wine .... enjoy!