I don’t have a reference for this, but I seem to recall that corn ethanol in particular produced more CO2 in its production then you saved by burning it.
(Might have been a different ethanol. There are many things that can be turned into ethanol, and it matters if some are worth it and others are not).
(Might have been a different ethanol. There are many things that can be turned into ethanol, and it matters if some are worth it and others are not).