Oil is an abundant and relatively inexpensive fuel used to power automobiles, airplanes and other forms of transportation, but it poses significant environmental threats as well. Oil is one of the most abundant sources o... More »

Pros of using synthetic motor oil include improved lubrication, better protection during temperature extremes, reduced depositing of unwanted substances in the engine, improved fuel economy in some engines and increased ... More »

The main pro of fracking is that natural gas is less harmful to the environment than coal when used as fuel. The main con is that fracking operations may harm their surrounding communities. More »

While ethanol produces less CO2 than gasoline and has the potential to offset consumption of conventional fossil fuels, ethanol also contains less energy and provides less power than conventional gasoline and diesel fuel... More »

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The advantages of solar power include the energy independence it bestows on its users, quiet energy production, the lack of negative effects on the environment, and its overall cost. On the other hand, the high initial c... More »

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Sugarcane ethanol has the highest net energy output of all crop biofuel systems of transportation. Its net energy output is more than twice that of wheat ethanol or biomethane. One acre of Brazilian sugarcane can produce... More »

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Hydropower is clean, renewable and the lowest-cost way to generate electricity, but hydropower also requires damming of rivers, which destroys wildlife and changes the natural cycle of the river flooding. It can also cau... More »

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