Stories tagged corn
As Midwest flooding and rising demand for ethanol pushes the price of corn ever higher, Cornell researcher Norman Uphoff is developing a new way to grow rice. His method produces more grain to feed more people; uses less water; and releases less greenhouse gas into the atmosphere.
Tags : We’ve talked a couple of times before about using corn to produce ethanol, and how this increases the demand for corn and thus the price. Well, now there’s more bad news: the recent flooding in the Midwest is wiping out some farmers’ fields, reducing this year’s corn crop and pushing prices to an all-time high.
Corn, the real enemy: The demand for corn to make ethanol is pushing up the price of many food items, including ice cream. Photo by frascelly at flickr.com
Most ethanol is made from corn.
As the demand for corn goes up, the price goes up, too.
Dairies buy corn to feed their milk cows.
As the price of corn goes up, dairies must raise the price of milk to keep even.
And what essential, life-sustaining product is made from milk?
ICE CREAM, PEOPLE!
The demand for ethanol is forcing up the cost of ice cream!
The terrible irony of all this is that ethanol is promoted as a renewable, alternative fuel, one that will reduce pollution and carbon emissions and thus help combat global warming. Yet, its production is harming the one known proven antidote to blazing temperatures – ice cream!
Our way of life, our very existence is at stake here.
Fortunately, science comes to the rescue. Researchers in Georgia are building the first cellulosic ethanol plant, which will make ethanol from plant waste (like lawn clippings and switch grass) rather than from food crops.
It may not save the planet, but if it saves ice cream, that will be a good first step.
The demand for corn to make ethanol is pushing up the price of many food items, including ice cream. Photo by frascelly at flickr.com
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Corn field: Corn is used to produce ethanol fuels, such as E85. Photo courtesy killermart, Flickr Creative Commons.Biofuels are fuels that are derived from recently living organisms, such as corn or soybeans, or their byproducts, such as manure from cows. A recent study at the University of Minnesota examined the total life-cycle cost of all of the energy used for growing corn and soybeans and converting these crops into biofuels to determine what biofuel has the highest energy benefit and the least impact on the environment.
Corn grain ethanol vs. soybean biodisel
Two types of biofuels are becoming more visible as we look for alternatives to petroleum because of increasing gas prices: soybean biodisel and corn grain ethanol, such as E85. The study showed that both corn grain ethanol and soybean biodiesel produce more energy than is needed to grow the crops and convert them into biofuels. However, the amount of energy each fuel returns differs greatly. Soybean biodiesel returns 93 percent more energy than is used to produce it, while corn grain ethanol currently provides only 25 percent more energy than is used to produce it.
The study also compared the amount of greenhouse gases each biofuel released into the environment when used. Soybean biodiesel produces 41% less greenhouse gas emissions than diesel fuel while corn grain ethanol produces 12% less greenhouse gas emissions than gasoline.
Not a silver bullet
The researchers conducting this study caution that neither biofuel is ready to replace petroleum. Even if all current U.S. corn and soybean production were dedicated to biofuels production, it would still only meet 12 percent of gasoline demand and 6 percent of diesel demand, and we still need to produce these crops for food. Biofuels are steps in the right direction, however, and can be a piece of the overall puzzle needed to be put together to solve our energy needs.
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