By favoring costly, non-existent cellulosic
biofuels over corn - based ethanol, Clinton's fuel mandate would resemble California's Low Carbon Fuel Standard (LCFS).
Not exact matches
To see if nonfood plants could be a source of a
biofuel the way
corn is, researchers followed six alternative crops and farming systems in so - called marginal lands
over 20 years, including poplar trees and alfalfa.
Clearing grasslands to make way for
biofuels may seem counterproductive, but University of Wisconsin — Madison researchers show in a study today (April 2, 2015) that crops, including the
corn and soy commonly used for
biofuels, expanded onto 7 million acres of new land in the U.S.
over a recent four - year period, replacing millions of acres of grasslands.
It seems kind of strange, since most
biofuels are made from
corn, and
corn is down to a little
over $ 0.06 pound, today.
Over the next seven years, the RFS calls for
corn - based ethanol to cede market share to other
biofuels.
In fact, since the RFS expanded renewable fuel volumes in 2007,
over 1/3 of
corn production and nearly 1/4 of the oil produced from soybeans have been diverted to
biofuels.1 As the EPA points out, «because many
biofuel feedstocks require land, water, and other resources, research suggests that
biofuel production may give rise to several undesirable effects.»
The past decade has seen the supply of
corn greatly exceed the demand — in the US, at least, there is certainly room for limited amounts of
corn crop land to be transfered
over for cellulose
biofuel production, especially high density crops.
Despite what I thought were persuasive articles
over the years (here, here and here, for example),
corn ethanol and other
biofuel mandates remain embedded in U.S. law.
Sugar cane and
corn are what come to mind at first when we think about
biofuels, but
over the past years the use of animal fats to produce these has extended.
Photo credit: Lynn L. Walters / The New York Times Proponents of
biofuels, which are often made from plants such as
corn or sugar cane, often point to their many advantages
over fossil fuels like gasoline.
Corn - based ethanol does not appear to have any particular advantage
over other
biofuels, and it is questionable whether it can be significantly expanded without adverse consequences.