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Alternative fuel sources should be one of the most important focuses that we as responsible human beings strive to develop so that we leave this world a better place than we got it from our ancestors. There is an ardent need for saving the environment that is being polluted by emissions given out by the extensive use of gasoline and/or petrol for energy. This article will focus on the various alternative fuel sources currently available. The conventional and traditional fuel sources are becoming more and more expensive to extract and their indiscriminate use in the past century has resulted in their depletion of oil stores. Alarm bells have already started ringing that these storehouses of natural fuels will reach critically low levels and precipitate a crisis much earlier than we think. Fortunately, there are a number of other options that could be a viable solution. Science may be able to offer us a great commercial solution that will be readily available, friendly to the environment, and not too expensive. Bio-diesel is one such alternate fuel source that is extracted from plants into a liquid form. Also known as E 85, bio-diesel is partly renewable. Its contents of 15% gasoline and 85% ethanol mean that it is at least better than using pure gasoline. However, neither of these fuels is a magic bullet. They still cause pollution and greenhouse gas emissions, and require a lot of plant matter. The most popular choices are corn and soybeans, meaning that as production increases, these plants will become less available as food for humans. This has already caused problems in poorer locations. One alternative fuel source that's viable for transportation is electricity. It's the best currently available technology when it comes to conserving our existing sources of fuel. The efficiency of these cars is greater even when it comes to using conventional means of generating electricity. That's because all power can be generated in a central location, instead of in the car itself. Alternate energy sources like wind, water, and sun may be used supplementally or instead of coal and oil to generate electricity, depending on the location. Of course, one of the ultimate alternative fuel sources is muscle power. Changing over to a bicycle or walking is one excellent way to conserve fuel and get in shape. Since fuel prices keep rising as availability continues to decrease, many people are turning to pedal power in an attempt to curtail their usage. Bio-diesel and E-85 aren't readily available, and electric cars have their own problems. For a short to medium commute, the bike is an ideal solution.
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