Study: Corn Ethanol Leads to More Pollution

A new report warns growing more corn for ethanol production carries some risks
for clean water. Chuck Quirmbach has details:

Transcript

A new report warns growing more corn for ethanol production carries some risks
for clean water. Chuck Quirmbach has details:


A lot more corn is going toward making ethanol, but a study by the National Research
Council says in areas with limited water supplies, adding acres of corn, or
launching water-using ethanol production plants is a major concern. The report also says increased use of fertilizers and pesticides on corn fields
could trigger more water pollution.


Study committee chairman Jerald Schnoor urges more research to help
extract energy from lower-impact perennial crops such as grasses:


“There needs to be a technology breakthrough so that enzymes and organisms
can break down the cellulose, the hemi-cellulose and lignin from plants like
switchgrass, woody biomass plants like poplar and willow.”


Schnoor says more research dollars could come from reducing federal subsidies
for corn-based ethanol.


For the Environment Report, I’m Chuck Quirmbach.

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Corn Ethanol: Study Says More Smog

New research out of Stanford University says ethanol-based fuels might
not be any better for the environment than gasoline. But as Dustin
Dwyer reports, that’s not expected to stop the drive to increase
ethanol use:

Transcript

New research out of Stanford University says ethanol-based fuels might
not be any better for the environment than gasoline. But as Dustin
Dwyer reports, that’s not expected to stop the drive to increase
ethanol use:


Researchers at Stanford University found that even while ethanol based
E85 fuel can reduce some harmful vehicle emissions, it increases
others.


The study shows that E85 can lead to higher ozone emissions, which
contribute to smog. And the study says that could cause up to 185 more
ozone-related deaths in the U.S. every year.


This isn’t the first study showing the possible hazards of ethanol.
Others have raised concerns about the impact corn-based ethanol could
have on the food supply, and how it could affect land use, but ethanol
supporters say it’s still the best available option to cut down on
foreign oil.


Ethanol remains politically popular, and Detroit automakers have
committed to making up to half of their annual vehicle fleets ethanol-
capable by 2012.


For the Environment Report, I’m Dustin Dwyer.

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