text: This idea of no cars has spread all over the world. "Paris enfoced a partial driving ban to clear the air of the global city".(Duffer, paragraph 10). This city in France is banning the use of cars to reduce the amount of smog in the air. "Diesel fuel was blamed.."(Duffer, paragraph 16). Because this city prefers diesel over gasoline, there's more pollution in the air. Therefore needing to reduce the amount of  car usage.