text: Various factors come into play when it comes to world pollution. One of the factors being the use of automobiles which increases the amount of air pollution thus damaging the ozone layer. The use of cars is second nature to us. We love the sense of indepence we get at the age of 16 when we can finally get our license. To point out, no one thinks on whats happening as we purchase cars. Instead, we rely on diesel gas to do the trick. Imagine cutting out the use of cars. With this detuction of car usage the amount of destruction done to the ozone layer will diminish tremendously. We will be able to experience clearer air just like the communities that participate in this action. For instance, in an article done by Robert Duffer titled "Paris bans driving due to smog" we can witness through testimony the wonders done by banning car usage. Normally Paris has high amounts of pollution but in order to change this the city enforced a partial driving ban to clear the air temporarily. The fact that the city had cold nights and warm days doesn't do anything to help because these nights and days only allow for the warmer layer of air to trap car emissions. After the banning of car usage Paris was finally able to experience clear air. "Paris typically has more smog than other European capitals... Last week Paris had 147 ,micrograms of particulate matter (PM) per cubic meter compared with the 114 in Brussels and 79.7 in London... " (excerpt from source 2 "Paris bans driving due to smog").