text: The pollution of the air is a major arguement for people who support the non-usage of cars or other motorized vehicles. In Source 1: In Germany Suburb, Life Goes On Without Cars, Elisabeth Rosenthal claims that motorized vehicles play a major part in the pollution of the air. Rosenthal says that Europe is responsible 12 percent of greenhouse gas emissions, and the United States is resposible for up to 50 percent.