text: In Vauban, Germany people are suburban pioneers. They have forbidded street parking, driveways and home garages. Their streets are car free, with some few exceptions. They have allowed car ownership, but there are only two places to park. They have large garages at the edge of the development, where the car owner has to buy a space that costs $40,000, along with a home. As a result of these limitations, 70% of people do not own cars, and 57% sold their car to move here. Heidrun Walter, a mother of two says that "When I had a car I was always tense. I`m much happier this way." Vauban is a growing trend in Europe, that was completed in 2006. Experts say that it is a huge effort to drastically reduce greenhouse gas emissions from tailpipes. 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.