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study shows ethanol from corn using low-till, no-till agriculture reduces GHG 41% - 64% respectively

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JohnWxy Donating Member (1000+ posts) Send PM | Profile | Ignore Wed May-07-08 03:52 PM
Original message
study shows ethanol from corn using low-till, no-till agriculture reduces GHG 41% - 64% respectively
study done by Dale and Kim, Michigan State University.

for those actually interested in scientific research:

http://www.geocities.com/jwalkerxy/Ethanol_environmental.htm


Nonrenewable energy consumption and greenhouse gas (GHG) emissions associated with ethanol (a liquid fuel) derived from corn grain produced in selected counties in Illinois, Indiana, Iowa, Michigan, Minnesota, Ohio, and Wisconsin are presented. Corn is cultivated under no-tillage practice (without plowing). The system boundaries include corn production, ethanol production, and the end use of ethanol as a fuel in a midsize passenger car. The environmental burdens in multi-output biorefinery processes (e.g., corn dry milling and wet milling) are allocated to the ethanol product and its various coproducts by the system expansion allocation approach. The nonrenewable energy requirement for producing 1 kg of ethanol is approximately 13.4–21.5MJ (based on lower heating value), depending on corn milling technologies employed. Thus, the net energy value of ethanol is positive; the energy consumed in ethanol production is less than the energy content of the ethanol (26.8MJ/kg). In the GHG emissions analysis, nitrous oxide (N2O) emissions from soil and soil organic carbon levels under corn cultivation in each county are estimated by the DAYCENT model. Carbon sequestration rates range from 377 to 681 kg C/ha/year and N2O emissions from soil are 0.5–2.8 kg N/ha/year under no-till conditions. The GHG emissions assigned to 1 kg of ethanol are 260–922 g CO2 eq. under no-tillage. Using ethanol (E85) fuel in a midsize passenger vehicle can reduce GHG emissions by 41–61%/km driven, compared to gasoline-fueled vehicles. Using ethanol as a vehicle fuel, therefore, has the potential to reduce nonrenewable energy consumption and GHG emissions. r 2004 Elsevier Ltd. All rights reserved.
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kristopher Donating Member (1000+ posts) Send PM | Profile | Ignore Wed May-07-08 05:37 PM
Response to Original message
1. Hmmm. Any relation?
http://www.innovativebiotechnologies.com/index.htm
Welcome to Innovative Bio-Technologies, LLC

Innovative Bio-Technologies (IBT) was formed in late 2003, as a Wisconsin limited liability company. IBT was originally created to allow investors the opportunity to own and operate a biorefining facility. In January of 2006, we shifted that focus to include consulting, research and development in the rapidly-growing renewable energy sector.

Today the vision of Innovative Bio-Technologies is to:

* Consult and Develop clean and efficient renewable energy powered Bio-Refineries in Greenfield projects

* Retrofit existing Bio-Refineries to conserve energy resources

http://www.innovativebiotechnologies.com/people.htm

Key Personnel

Mr. John C. Walker

Mr. John C. Walker serves as Vice President of the Energy Division of Innovative Bio-Technologies.
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JohnWxy Donating Member (1000+ posts) Send PM | Profile | Ignore Wed May-07-08 05:40 PM
Response to Reply #1
2. lol. No. I can assure you my screen nomen has no relationship to my real name.

I wish!
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kristopher Donating Member (1000+ posts) Send PM | Profile | Ignore Wed May-07-08 05:45 PM
Response to Reply #2
3. You keep referring to links that are set up by jwalker.
Edited on Wed May-07-08 05:46 PM by kristopher
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JohnWxy Donating Member (1000+ posts) Send PM | Profile | Ignore Wed May-07-08 05:51 PM
Response to Reply #3
4. that's mine - still made up name. want to preserve my anonimity.
Sometimes I write political stuff critical of the American Taliban (NeoCons). I definitely do not want to be tracked down.
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kristopher Donating Member (1000+ posts) Send PM | Profile | Ignore Wed May-07-08 05:58 PM
Response to Reply #4
5. Riiiiiiiiight.
And you push an extremely damaging technology because you are confused about the big picture.

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JohnWxy Donating Member (1000+ posts) Send PM | Profile | Ignore Wed May-07-08 06:33 PM
Response to Reply #5
6. That's right. You've got it all figured out. Now take your pills & I'll tie the arms of your jacket
a little tighter in back just for your own safety (and the safety of others).
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kristopher Donating Member (1000+ posts) Send PM | Profile | Ignore Wed May-07-08 07:17 PM
Response to Reply #6
7. You push so many falsehoods with such dedication
You push so many falsehoods with such dedication it is obvious you have a vested interest.
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Fledermaus Donating Member (1000+ posts) Send PM | Profile | Ignore Wed May-07-08 08:21 PM
Response to Original message
8. NO-TILL FARMING OFFERS A QUICK FIX TO HELP WARD OFF HOST OF GLOBAL PROBLEMS
COLUMBUS, Ohio – Increase no-till farming practices across the planet or face serious climate, soil quality and food production problems in the next 20 to 50 years. That warning from scientists appeared in the journal Science this week.

No-till farming helps soil retain carbon. Healthy topsoil contains carbon-enriched humus – decaying organic matter that provides nutrients to plants. Soils low in humus can't maintain the carbon-dependent nutrients essential to healthy crop production, resulting in the need to use more fertilizers.

A lack of carbon in soil may promote erosion, as topsoil and fertilizers are often washed or blown away from farm fields and into waterways, said Rattan Lal, the paper's lead author and the director of the carbon management and sequestration center at Ohio State University.

http://researchnews.osu.edu/archive/notill.htm
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JohnWxy Donating Member (1000+ posts) Send PM | Profile | Ignore Thu May-08-08 03:31 PM
Response to Reply #8
10. Jesus! Did you see those numbers? 300 million tons of carbon per yr if all farmers used no-till
Farmers in the United States use no-till methods on 37 percent of the nation's cropland, which results in saving an estimated 60 million metric tons of soil CO2 annually.

"If every farmer who grows crops in the United States would use no-till and adopt management practices such as crop rotation and planting cover crops, we could sequester about 300 million tons of soil carbon each year," said Lal, who is also a professor of soil science at Ohio State.



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Fledermaus Donating Member (1000+ posts) Send PM | Profile | Ignore Wed May-07-08 09:39 PM
Response to Original message
9. A negative-carbon corn ethanol plant?
Total CO2 emissions are reduced for all CHP cases compared to their respective base case plants. Again, displaced central station emissions for Cases 2 and 3—the two natural gas CHP cases with excess power available for export—represent a significant CO2 savings. Total net CO2 emissions in Case 2 represent an 87 percent reduction in CO2 emissions compared to the natural gas base case. Total plant CO2 emissions for Case 3 are actually less than the displaced central station emissions, resulting in a negative (-0.71 pounds per gallon) net CO2 emissions rate compared to the base case.
http://www.epa.gov/chp/documents/ethanol_energy_balance.pdf
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JohnWxy Donating Member (1000+ posts) Send PM | Profile | Ignore Thu May-08-08 04:16 PM
Response to Reply #9
11. Jesus! This really should have a thread of it's own. NEGATIVE CARBON EMMISSIONS??

This is the clearest presentation of an integrated biomass Combined Heat and Power system and it shows what using biomass does for your process. eliminate the fossil fuels and you really see the power of using renewable fuels!

great post, Fledermaus!(really deserves a thread of it's own).



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kristopher Donating Member (1000+ posts) Send PM | Profile | Ignore Thu May-08-08 04:24 PM
Response to Reply #11
12. Hmmmm
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Fledermaus Donating Member (1000+ posts) Send PM | Profile | Ignore Sun May-11-08 12:14 AM
Response to Reply #12
13. No mas
Edited on Sun May-11-08 12:30 AM by Fledermaus
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