Fuel me once?Ethanol is not an alternative to petroleum-based fuel to reduce air pollution ("Not-So-Clear Alternative: In its air-quality effects, ethanol fuel Ethanol fuel is ethanol (ethyl alcohol), the same type of alcohol found in alcoholic beverages. It can be used as a fuel, mainly as a biofuel alternative to gasoline, and is widely used in cars in Brazil. is similar to gasoline," SN: 5/5/07, p. 278). It is a grow-it-at-home alternative to foreign-source petroleum-based fuel. It takes only 2 years to build an ethanol-extraction plant but 10 years to build a petroleum-extraction plant. Right now, as long as ethanol doesn't increase air pollution, I'll take it. LIN DANIEL, CHATSWORTH, CALIF. I wonder if Mark Jacobson Mark Jacobson (b.1948) is an American author living in Brooklyn, New York. He attended University of California, Berkeley. Achieved recognition in New York City while writing for the Village Voice in the 1970's, most particularly for a lurid account of life in the China Town Ghost included in his model comparing the air-quality effects of burning ethanol versus gasoline the decrease in automobile gas mileage Noun 1. gas mileage - the ratio of the number of miles traveled to the number of gallons of gasoline burned fuel consumption rate, gasoline mileage, mileage ratio - the relative magnitudes of two quantities (usually expressed as a quotient) with ethanol. I regularly track my mileage and routinely suffer a loss of 2 to 3 miles per gallon Noun 1. miles per gallon - the distance traveled in a vehicle powered by one gallon of gasoline or diesel fuel unit, unit of measurement - any division of quantity accepted as a standard of measurement or exchange; "the dollar is the United States unit of during the winter months when Albuquerque-area gas stations switch to an ethanol mix. Even if the polluting effects of both fuels were the same, increased efficiency would favor gasoline. JACKIE ERICKSEN, PLACITAS, N.M. The article seems to have overlooked that ethanol, from plants, contains carbon directly removed from the atmosphere. JOHN BODENSCHATZ, SAN FRANCISCO San Francisco (săn frănsĭs`kō), city (1990 pop. 723,959), coextensive with San Francisco co., W Calif., on the tip of a peninsula between the Pacific Ocean and San Francisco Bay, which are connected by the strait known as the Golden , CALIF. |
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