text: Finally, bringing it back home to America on the advantages on limiting car usage. President Obama shares his plan to reduce the emission of greenhouse gas. Sources from article 4 tell how Americans are buying fewer cars, driving less and how fewer are getting their license as the years go by, statistics show a large drop in the amount of 16 to 39 year olds getting their license. this article also tells how sociologists believe that if this countiues it will be beneficial for the enviornment. New York being one of the most populated states has a new bike-sharing program as well as car-sharing programs to help contribute to lessen the pollution and emission of greenhouse gases.