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RedEarth Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Feb-06-07 02:09 PM
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Is Ethanol the Answer?
Is Ethanol the Answer?
Politically it's a winner. But experts aren't sure ethanol can deliver on its promise
By Marianne Lavelle and Bret Schulte

Posted Sunday, February 4, 2007

Galva, Iowa-This farming town of fewer than 400 people might be most memorable for what it doesn't have: a Wal-Mart, a high school, even a stoplight. But humble Galva and its environs have two things in abundance: corn and, by extension, hope. "We feel we're on the cusp here as far as things happening," says Rita Frahm, an 18-year resident and president of the county's economic development corporation. That's because Galva is the lucky home of an ethanol plant.

Since opening in 2002, the plant has produced ever increasing dividends, to date putting more than $13 million into the hands of the 420 local farmers and investors who own it. That cash is slowly but markedly changing Galva's landscape. For the first time in 30 years, the town witnessed construction of three new homes at once, and a whole new street, Sixth Street, on which to place the houses. Those dwellings are now occupied by families "who saw an opportunity to stay rather than the community dying," Frahm says.

Heartwarming stories like Galva's-in a state that hosts the first presidential contest-help explain why Washington is so fired up over ethanol. In 2006, production skyrocketed, and Washington is poised to push it still higher. What's not to like? Every gallon theoretically means more money for the iconic American farmer and less cash lining the pockets of foreign sheiks. "There's almost a sense," says Iowa State University political scientist Steffen Schmidt, "that ethanol is morally better than oil."

Washington loves a "win-win," but there are plenty of doubts as to whether the love affair with ethanol qualifies. Even though the ethanol industry profited handsomely last year, it continued to benefit from billions of dollars in taxpayer subsidies. And as ethanol becomes a larger part of the energy mix, it is not clear that Washington is prepared for the fallout. Ethanol already consumes so much corn that signs of strain on the food supply and prices are rippling across the marketplace. Environmental impacts will multiply as more land and water are devoted to the prized yellow grain. And, even if these problems were overcome, ethanol's potential growth could be stunted by an energy system currently tailored to gasoline. Ethanol undoubtedly plays a role in the quest for energy independence and the desire to curb global warming. But some observers worry that ethanol development may take the place of more effective initiatives: forcing automakers to increase gas mileage, for instance, or mandating cuts in carbon dioxide emissions. "Some members of Congress are looking for quick fixes," says one economist who has studied the issue. "It's an easy bandwagon to jump on. But there's a lot of exaggeration about what ethanol is capable of doing."


Beginnings

Ethanol is alcohol distilled from fermented, mashed grain. It took a century for it to make a big splash on the U.S. energy scene, even though Henry Ford built his first Model T in 1908 to run on either gasoline or ethanol. Over the decades, petroleum proved cheaper, and grain alcohol was relegated to college fraternity parties rather than gas tanks. No one looked seriously at ethanol as fuel until the oil price shocks of the 1970s, when Congress decided to subsidize a homegrown alternative-most significantly through a tax credit to oil companies for every gallon of the costly alternative they blended into gasoline. But when oil prices fell again in the late 1980s through the 1990s, the nation's dependence on petroleum imports mushroomed to 60 percent, and ethanol was reduced to a performance-boosting additive for some midwestern gasoline-a nice, subsidized side business for the dominant producer, Archer Daniels Midland.

http://www.usnews.com/usnews/news/articles/070204/12ethanol.htm
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AnneD Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Feb-06-07 02:13 PM
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1. With all the changes...
in the global weather patterns taking place-I wouldn't want all my eggs in the same basket.
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Fovea Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Feb-06-07 02:14 PM
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2. No.
ROEI is low, and weather is to corn what geopolitical instablity is to Oil.

Two words- Climate change.


What would happen to the economy in a dust bowl?
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Ezlivin Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Feb-06-07 02:17 PM
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3. Your answer lies in the ERoEI
Energy Returned on Energy Invested.

If it takes 2 bbl of oil to make the equivalent of 1 bbl of oil it doesn't take a mathematician to realize that this is unsustainable.

Currently it takes more energy to create ethanol than it produces. Hence it is a net energy loser.

We can crank out ethanol as long as we have petroleum to run the ethanol-making process. But what happens when the petroleum is $200/bbl?

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WHEN CRABS ROAR Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Feb-06-07 02:20 PM
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4. Ethanol is not the answer.
look at electrical instead, Just needs a breakthrough in battery design. Already has good working models.
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Igel Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Feb-06-07 02:31 PM
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6. Depends on the source of the ethanol,
and how efficient it is.

Batteries don't produce energy. The problem's still what's to replace oil (or, in a second set of concerns, oil, coal, and natural gas).
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jbonkowski Donating Member (243 posts) Send PM | Profile | Ignore Tue Feb-06-07 02:30 PM
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5. Corn is not a good source for ethanol
1) It would take all of the US corn supply, and more, to replace all of the gasoline we use. No more corn for eating?!?

2) Growing corn is very taxing on the soil. There is a really old church in the midwest that is eight feet higher than the surrounding cornfields, because 150 years of growing corn has depleted the soil so much. This makes ethanol a non-renewable source for energy, in the long term.

Some kind of genetically modified bacteria or algae that produces ethanol as a byproduct of metabolizing naturally occurring heat or sunshine, maybe along with some human waste, is about the only way ethanol could replace gasoline for all of the cars out there.

jim
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GliderGuider Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Feb-06-07 02:50 PM
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7. Not just no, but
Hell No!

Ethanol from grain has an energy return of about 1.3:1, which drops to 1:1 when you take the non-energy-producing byproducts (DDG) out of the equation. That means you get out about as much energy as you put in. Given that the majority of the energy inputs are fossil fuels, you gain virtually nothing in either energy or CO2 reduction. To do this you want to use up food? It's insane.

Cellulosic ethanol is pie in the sky. There are no commercial plants in the US, just a couple of demonstration or pilot projects. The needed bacteria and enzymes aren't quite there yet...

Ethanol is just another of the soothing "Go back to sleep this is just a bad dream, when you wake up we'll all have pancakes" misdirections that parents use on frightened kids in war zones to help them sleep as the bombs fall ever closer.
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Dead_Parrot Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Feb-06-07 04:36 PM
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8. There is no one answer
But ethanol - along with other hydrocarbon biofuels - is probably going to be a part of it. The energy density of ethanol is 26.8 MJ/kg, compared to 720 kJ/kg for a Li-ion battery: nearly 40x higher, and some applications can't be translated to electricity only. We are not going to see battery powered freight trains or aircraft anytime soon.

Yes, there are huge problems with grain ethanol, but it's not the only way to make the stuff. And the EROEI may be sucky, but when the end product is a mobile, flexible, on-demand source of power it's worth swallowing: Nobody complains about the EROEI of AA batteries, for instance.
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damntexdem Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Feb-06-07 05:25 PM
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9. Only if the question is 'what does the U.S. do wrong now?'
It could be one of the answers if the issue was to use a source raised in a sustainable manner, that didn't mean diverting a major foodstock, and if engines were changed to use it efficiently without mixing with petroleum products.

But the question apparently asked by the Bushistas is 'how can we reward agribusiness?' Theis answer IS 'ethanol' -- but that won't help with sustainability.
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