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“Over time, we are trying to reduce our...emission of greenhouse gas, and the demand for ethanol will increase as countries attempt to adhere to Kyoto.”
~ Guido Mantega, Brazil's Finance Minister
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Environmental
Ethanol is a renewable, environmentally friendly fuel that is inherently cleaner than gasoline.
Better for the Air:
Better for Groundwater:
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Ethanol is nontoxic and biodegradable in nearly all environments and thus is an excellent alternative to MTBE — a fuel oxygenate derived from petroleum — which is banned in many states because it has been shown to contaminate groundwater and is listed as a possible carcinogen.
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Ethanol spillage is virtually harmless to the environment, eliminating the many adverse effects associated with oil spills.
No Need to Refine:
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Ethanol does not have to be refined. It is poured into the tank and therefore there is no need for expensive, polluting refineries.
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Pollution associated with petroleum refining includes VOCs (volatile organic compounds), carbon monoxide (CO), sulfur oxides (SOx), nitrogen oxides (NOx), particulates, ammonia (NH3), hydrogen sulfide (H2S), metals, spent acids, and numerous toxic organic compounds. Sulfur and metals result from the impurities in crude oil.
The Carbon Cycle:
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The ethanol production process represents a carbon cycle. Thus, the feedstocks used to produce ethanol absorb carbon dioxide (C02) during growth, “recycling” the carbon released during fuel combustion.
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In addition, many ethanol plants collect that carbon dioxide released during fuel combustion and market it as co-product.
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