text: Germany uses suburb to reduce the car usage and make more people walk or use bicycles to go where they want to go. Vauban's streets are completely car free except the main thoroughfare, where the tram to downtown Freibrug runs, and a few streets on one edge of the community. As a result, 70 percent of Vauban's families do not own cars, and 57 percent sold a car to move here. I'm much happier this way, said Heidrum walter, as she walked verdant streets. Vauban, completed in 2006, is an example of a growing trend in Europe, the United States  and elsewhere to separate suburban life from auto use. Passengers cars ar e responsible for 12 percent of greenhouse gas emissions in Europe and up to 50 percent in some car intensive areas in the United States. In the Unite States, the Environmental Protection Agency is promoting car reduced communities, and legislators are starting to act. People can do just as good without cars.