[varroa]

corn ethanol is a net negative

Some amount of ethanol added to gasoline serves as a fuel oxygenator, reducing emissions of soot and carbon monoxide. A discussion of whether there is a better oxygenate than corn ethanol could be interesting, but 5% or 10% ethanol is really there for emissions, not biofuel.

[toomuchtodo]

Agreed that ethanol is superior to MTBE (which was phased out due to toxicity) [1], but E85 efforts [2] are misguided.

[1] https://en.wikipedia.org/wiki/Methyl_tert-butyl_ether

[2] https://en.wikipedia.org/wiki/E85

[lostapathy]

Right - corn ethanol offset a lot of MTBE usage in the USA, which is a good thing.