Cellulose ethanol is different from the first generation of this alternative fuel, because conventional ethanol is made from corn and other soft starches. This has led to critics of the first generation fuel to contend that alternative fuels take away from the global food supply and contribute to world hunger and famine in certain areas. Cellulosic ethanol production does not involve this drawback, because no food crops or fertile crop land are used to produce the alternative fuel. Cellulose ethanol is created using plants that grow on land not suitable for food crops, and the plants are not used at all in the food supply. Feedstocks for this fuel type include switchgrass, agricultural wastes, and even municipal waste from household garbage. These are feedstocks that would be discarded as wastes anyway, so it makes sense to use them for biofuels instead.
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