[solarguy]

I can assure you, you will care about topsoil erosion when your food costs go up 50% across the board in your lifetime and food shortages get dramatically worse. Never mind the depletion of fossil aquifers to irrigate corn. Water tables in all the major grain producing countries are dropping rapidly due to over use of irrigation. Why waste it on ethanol?

And if the true EROIE is 1:1, then for every BTU of ethanol we produce, we use up 1 BTU of fossil fuel in the farming/harvesting/production of the corn based ethanol. Hard to see how you're getting ahead. At best, it's 1.3:1, so a net gain of 30% on the BTU's.

By comparison, biodiesel has an EROIE of 3:1, give or take a smidge. So, for every unit of fossil fuel you put in, you get 3 units out, a net gain of 2 units. Much better than 0.3 units out.

Finest regards,

troy