text: In German Suburb, life goes on without cars it states that "passenger cars are responsible for 12 percent of greenhouse gas emissions", "in the Untied States up to 50 percent in some areas. All of these gases from our cars causes so much pollution. In the second artical it states that "paris had near-record pollution", this is not a good thing, our earth can only take so much. All this pollution is not good for our earth. If we limit car usage the better our earth will be and the better we will be able to breath.