Quote Originally Posted by mudr View Post
The majority of environmental scientists I know do not like or even despise the notion ethanol as an answer to our climate change problem. As noted above, it takes more energy to produce than it actually provides. At this point, the major players that actually push for and support ethanol are large chemical companies and the Midwest corn lobbyists.

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I wonder if that's still true. If I'm reading it right, according to the USDA (https://www.usda.gov/oce/reports/ene...ornEthanol.pdf) "energy input for ethanol production declined to 9,007 BTU/gal." And the actual number of BTU in a gallon of ethanol is 76,100 (https://en.wikipedia.org/wiki/Gasoli...lon_equivalent)

So if you're just looking at energy in over energy out, it's 9/76 = 12%. This may be higher than some other fuels, but it's a far cry from "more energy to produce than it provides".

Gabe