text: A world with cleaner air is what we would have if everyone limited the use of their cars. According to " In German Suburb, Life Goes On Without Cars" by Elisabeth Rosenthal " Passenger cars are responsible for 12 percent of greenhouse gas emissions in Europe... and up to 50 percent in some car-intensive areas in the united states." The United States produces a greater amount of greenhouse gasses. If we limited the use of our cars the United States would have better air making the United States a better place to live. The United States has a very large number of people already pulling away from using cars. According to " The End of Car Culture" by Elisabeth Rosenthal." Americans are buying fewer cars,driving less and getting fewer licenses as each year goes by." Cars are not needed for everyday use because people seem to get around greatly.