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Biofuel is any fuel that derives from biomass — recently living organisms or their metabolic byproducts, such as manure from cows. It is a renewable energy source, unlike other natural resources such as petroleum, coal and nuclear fuels.
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| Yes (37) |  88% | | No (5) |  12% |
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Wind power refers to the extraction of useful energy from the wind. In 2005, worldwide capacity of wind-powered generators was 58,982 MW, their production making up less than 1% of world-wide electricity use. Although still a relatively minor source of electricity for most countries, wind power generation more than quadrupled between 1999 and 2005.
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| Yes (27) | 77% | | No (8) | 23% |
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E85 is the term for motor fuel blends of 85 percent ethanol and just 15 percent gasoline. E85 is an alternative fuel as defined by the U.S. Department of Energy.
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| Yes (42) | 76% | | No (13) | 24% |
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Battery electric vehicles or BEVs are electric vehicles whose main energy storage is in the chemical energy of batteries. BEVs are the most common form of what is defined by the California Air Resources Board (CARB) as zero emission (ZEV) passenger automobiles, because they produce no emissions while being driven.
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| Yes (46) | 78% | | No (13) | 22% |
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The United Nations has estimated that by 2015 at least 40% of the world's population will lack an adequate supply of water. Even now, one person in five does not have access to safe drinking water. 1.5 billion people today do not have ready access to potable water.
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| Yes (25) | 81% | | No (6) | 19% |
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