text: People believe cars to be a necessity, so they will be able to get from place to place but there are advantages to limiting the usage of cars in certain areas. For one it would reduce the amount of greenhouse gas, source 1 tells about a suburban town where there are no cars. It states that only 12 perecent of greenhouse gas emits in europe while in america it is up to 50 perecent. While Paris bans driving because of all the smog, statistics from source 2 show that Paris had 147 micrograms of particulate matter per cubic meter.