The best form of transportation depends on where you live. Like if you live in the country it is probably best if you use a car and if you live in the city you can take the subway or ride a bike. One thing is certain though they all produce pollution. We need transportation to get to work but I think to cut down on pollution and carbon emissions there should be a law where every person in the U.S. should only be aloud to drive 1,800 miles a year but this varies depending on where you live. 

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