text: Cars have changed our lives for the better and for the worse. They save us a tremendous amount of time by making traveling super efficient, but along with that is air pollution. Cars emit greenhouse gasses, and these gasses trap heat which in then leads to warming of the surface of the earth. This warming of the earth creates drastic changes in many environments such as the polar regions. "Passenger cars are responsible for twelve percent of greenhouse gas emmisions in europe... and up to fifty percent in some car intensive areas" This was stated in an article about German suburb life witout cars. By limiting the amount of which we drive and by switching to alternative sources for transportation we can lower the amount of greenhouse gases and stop the heating of the earth.