Mike writes: "Watermelons are more than just a tasty summer snack — researchers at the USDA have determined that the fruit constitutes a promising and economically viable source of biofuel. It turns out that the relatively high concentration of directly fermentable sugars in watermelon juice can be easily converted into ethanol. Rather than grow fields of the fruit for the purpose, the report suggests that farmers capitalize on the 20% of each annual watermelon crop that is left in the field because of surface blemishes or because they are misshapen."
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