Green Energy, Part 2: Ethanol and Biodiesel

Each biofuel, be it ethanol, biodiesel or vegetable oil, has its particular advantages and disadvantages, as well as proponents and detractors. However, ethanol and biodiesel, or biofuels in general for that matter, may not be the best choice in terms of the possible alternative renewable fuels available, certainly for every purpose or in terms of energy efficiency and environmental effects, according to a number of research studies.
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