|
|
NEWS
RECALLS
COMPLAINT FORM
SCAM ALERTS
RESOURCES
Small Claims Guide Class Actions Lemon Laws FAQ Newsletters |
| Automotive Education Employment Electronics Family Finance Health Homeowners Pets Shopping Travel |
|
|
![]() |
Ethanol Benefits QuestionedEnvironmental Effects Not Proven, Efficiency of Process Questioned |
||||||||||||||
|
By Joe Benton July 11, 2006
That assessment comes in a new report warning that expectations about ethanol dramatically changing U.S. dependence on foreign oil are probably exaggerated. The new research also claims that ethanol is not as environmentally friendly as once claimed. Ethanol from corn produces roughly 25 percent more energy than is consumed in growing the corn and producing and delivering the fuel. University of Minnesota researchers concluded that biodiesel from soybeans is the better choice for the future than ethanol from corn. They estimate soybean biodiesel nets 93 per cent more energy than the amount required to produce the fuel. But their analysis concludes that neither biodiesel nor ethanol can replace much petroleum without impacting food supplies. Their research was published in the Proceedings of the National Academy of Sciences. The research findings challenge earlier studies that argued there is a net energy loss in the production of ethanol from corn once the cost of farm equipment, environmental impacts and distillation are factored in. That is good news for the ethanol industry. The researchers warn however, that regardless of benefits, neither soybeans nor corn should be the foundation of an alternative fuel industry because they can replace only a fraction of U.S. petroleum consumption. The research says that the use of nonfood materials such as switchgrass, prairie grasses and woody plants to produce cellulosic ethanol would be a major improvement, yielding greater energy output and lower environmental impacts. But even that is not enough. The production of ethanol from non-food sources remains in the laboratory research stage and most research agrees that this form of ethanol would also fall far short of replacing gasoline. In an effort to answer the public outcry over gasoline and crude oil prices, members of Congress as well as the Bush administration have embraced ethanol as an alternative to gasoline to help move the country closer to energy independence. Report Your Experience
|
|
|||||||||||||
Back to the top | |
|||||||||||||||
Advertisement
|
|
Custom Search
|
||||
Terms of Use Your use of this site constitutes acceptance of the Terms of Use
Copyright © 2003-2009 ConsumerAffairs.com Inc. All Rights Reserved. The contents of this site may not be republished, reprinted, rewritten or recirculated without written permission. |
|