Comment by VerifiedReports

Yep, we've seen this sobering reality ignored in previously-hyped "biofuel" aviation stories.

Not to mention another glaring omission here: "By adding acetone to a mixture of alcohol and coconut oil"

How much energy is needed to produce those two ingredients, and the things THEY are made from?

If I were a junior-high teacher, I'd probably give this paper a C.