http://inflationdata.com/inflation/Articles/Corn_Inflation.aspand the recent spikes in oil and gas prices have placed upward pressure on corn prices - ethanol or no ethanol production.
Only 3% of the world's grain production is used for biofuels - population pressure, land and water availability and trade agreements have had a far greater impact on food prices and security than the "dreaded ethanol scam".
from the OP...
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So far, higher prices haven't generated a huge rise in overall global inflation, which remains relatively low and stable by historical standards. Moreover, food prices are notoriously volatile, and some of the increases are because of short-term or local factors that could reverse in time.
But many economists believe the forces causing the current bout of food inflation will persist, or recur in years ahead. Many countries are facing shortages of land and water that didn't exist during past food price spikes, so they can't easily plant more to ease the strain.
Researchers at Swiss bank UBS AG note that average food prices in China have grown faster in the past five years than in the previous five, as more agricultural land is taken up for factories or high-rise condominiums. Changes in diets are also exacerbating the problem, as rising incomes allow the Chinese and consumers in many other places to eat more.
Some economists contend that China and India appear to be reaching a point at which nothing short of a bumper crop of key commodities will be enough to meet local needs and prevent further surges in food prices. In fact, China and India have achieved historically high production of some crops in recent years, only to see prices continue to climb.
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Millions of Mexican corn farmers and related agricultural workers were displaced by cheap US NAFTA corn imports - ethanol had nothing to do with this...
http://www.sfgate.com/cgi-bin/article.cgi?file=/c/a/2006/07/31/MNGIVK8BHP1.DTLMexico's corn farmers see their livelihoods wither away07-31) 04:00 PDT Atlacomulco, Mexico -- Tending his sun-drenched half-acre cornfield, Jose Davila represents a part of Mexico that may fade away as the pressures of free trade intensify.
"I'm an antique," said the hunched 90-year-old farmer. "Who wants to work all day in the sun and earn so little? All the younger people now look for jobs in factories or construction. Either that, or they go to the United States."
The growing dilemma that Mexico's 2 million corn farmers face as the tariffs that protect them shrink under the North American Free Trade Agreement was an issue in this month's presidential election. And as the United States wrestles with already high levels of illegal immigration, some experts say the demise of Mexico's peasantry deserves serious U.S. attention.
"The Bush administration has sought to control immigration at the border, but that's virtually impossible," said Harley Shaiken, director of UC Berkeley's Center for Latin American Studies. "The beginnings of immigration are in the displacement of farmers in Mexico."
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Again, ethanol had nothing to do with this - but higher corn prices are benefiting small marginal Mexican corn producers and local rural economies. The implications of this are obvious.
Finally, global warming - not ethanol production - is the REAL threat to global food security, and ethanol is part of the solution to that problem...something the biofuel haters want you to forget.