> All that having been said, Pimental is right that soy
> and corn alone cannot replace our petroleum addiction
Essentially, soybeans are not grown for their oil value. They're grown
for the feed value, whether human destined or livestock. The oil is more
a co-product, almost waste product in some respect. If oilseeds are to
be grown for liquid fuel replacement, the focus must be on higher
yielding crops, with a mix of others such as soy to meet the feed meal
demands of populations.
Were it not for the excessive demand for feed meal placed by the
livestock industry, soy would not be the oilseed of predomenance. Reduce
the meat centered diet to one that treats meat as a delicacy rather than
a mainstay and vast acreages could be diverted to liquid fuel production
and cellulosic ethanol production rather than feed meal.
Todd Swearingen
John Hayes wrote:
Thanks to a post at TDIclub, I discovered that Pimentel has released
yet another report on ethanol. Looking at the dates below, he's a
month ahead of schedule this year.
http://www.news.cornell.edu/stories/July05/ethanol.toocostly.ssl.html
http://www.news.cornell.edu/Chronicle/03/8.14.03/Pimentel-ethanol.html
http://www.news.cornell.edu/Chronicle/01/8.23.01/Pimentel-ethanol.html
I can't speak to this newest report, but as long time readers of this
list already know, Pimental's work has been repeatedly critiqued, and
one of the main compliants it that he uses out of date numbers for
yield and conversion efficiency. Here's a few links:
http://www.mda.state.mn.us/ethanol/balance.html
http://www.usda.gov/oce/oepnu/aer-814.pdf
http://journeytoforever.org/ethanol_rooster.html
http://www.ncga.com/public_policy/PDF/03_28_05ArgonneNatlLabEthanolStudy.pdf
http://www.ethanol-gec.org/corn_eth.htm
All that having been said, Pimental is right that soy and corn alone
cannot replace our petroleum addiction
jh
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