text: My first reason why I say we should limit car use is because of the greenhouse gases we are releasing into the air. In article, "In German Suburd, Life Goes On Without Cars", paragraph 5, it says, "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 Sates.", which means that 50 percent of the greenhousse gases that we release comes from cars.