text: In Other Words, in a program located in Colombia that's spread to other countries millons hiked, biked. or took buses to work during a car-free day leaving the streets of this capital city devoid of traffic jams. the goal is to promote alternative transportation and reduce smog. In different too, President Obama's goals to curb the United State's greenhouse gas. recent studies produce that Americans are buying fewer cars, driving less, and getting fewer licenses as each year goes by. As of, part of the explanation certainly lies in the recession, Americans can't afford new cars, and the unemployed weren't going to work. The limiting car usage has big a big problem around the world and people's reactions are critical, the factors of the the car limiting usuage are smog, suburb, and car cultures.    To acess what one needs in the world today, many would think one needs a car. Currently, cars are a big part of transportation for many people. However, they are also major contributers to negative environmental impact as well as the decline of cities public areas and transportation. Contrary to popular belief, limiting car usage can be benefcial to many. Currently, throughout the world several car free systems are operating well. A decrease in the number of cars on streets and highways would lead to positive improvments in public spaces, public transportation, and the environment as a whole.