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Gasoline-burning cars are a foremost contributor to global warming. In fact, they are the next leading cause of global warming pollution in the United States. It would be beneficial if the cars may well be more efficient. If they might burn cleaner fuels, it would even be better. It is predicted that Americans will persist to put gasoline-burning vehicles on the road at alarming rates over the next twenty years. The quantity predictable is around 300 million new cars. With this hope, it is understandable that cars must be made with energy efficiency in mind. Otherwise, they will cause extensive global warming. Hybrid engines are being touted by many celebrities as a way to prevent global warming. Many celebrities prefer the Prius hybrid car. These hybrid cars do, in fact, twice over gas mileage. At the same time, they diminish damaging emissions that lead to overall warming. Future technologies for cars, such as fuel cells, may ease global warming even more. Fuel cells transform hydrogen fuel and oxygen into electricity. Then, the electricity is used to run the car. This knowledge has already been used by NASA and is expected to help smooth global warming in the future. Some ather alternate kinds of fuels have been in the news for helping to reduce global warming as well. One of the mainly appealing fuels is bio-diesel. This type of fuel can be made from a variety of sources. Vegetable oils such as soybean and rapeseed oils have been used successfully in regular diesel vehicles. Animal fats work, but are rarely used because they are too expensive. However, used oil from fast food restaurants can be employed to do the same thing. It is surprising that global warming can be slowed down by the use of fast food by-products. Ethanol is being used in many countries, now including the US, to decrease pollution and dependence on foreign oil. Global warming is impacted, too. Brazil, which uses ethanol almost exclusively, makes the fuel from sugar cane. In the US, corn is the chief source of ethanol. A few cars are flex-fuel vehicles which can be run on different fuel sources. They can use alcohol, gasoline, or a combination. E85 is mostly ethanol with 15% of the fuel being gasoline. This fuel performs a little better than pure ethanol, but is more conducive to cutting down on global warming than gasoline. Another way global warming can be addressed through transportation issues is in community planning. Communities can be built so that people can spend more time walking or cycling than driving. This cuts down dramatically on greenhouse gas emissions, thereby reducing global warming. The world, especially the US, can make some changes in the way they move about and transport their goods. If people do nothing, conservatory gasses will surely expand drastically. However, if changes are made, global warming will be cut to a very large degree.
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