text: To begin, cars emit green house gasses which will acumulate in our atmosphere trapping heat underneath it as it tries to leave our planet. This leads to a cumilative effect that causes the earth's average temperature to rise. In Suburb, Life Goes On Without Cars Elizabeth Rosenthal says "Green house gas emitions from cars in America make up fifty percent of all greenhouse gas emitions in the country." America barely has any regulations in relation to greenhouse gas emitions to start with but this is crazy. This problem could be easily solved with a few regulations  and some smart city planning. The benifits of this includes but is not limited to, more temperate climate, less airborne carcinogens and of course no crazy drivers.