text: Because of air pollution and smog due to cars, Paris had to start banning people from driving certain days.  If you  were caught driving when you weren't suppose to, a fine was inforced.  Almost 4,000 drivers were fined according to Reuters.  Diesel fuel was the blame of the smog because France perfers diesel over gas.  Diesels make up 67 percent of vehicles in France according to Reuters.  Paris has more smog than most European capitals.  This is really hurting the enviroment.  While Paris was banning cars, congestion was down 60 percent.  Besides car congestion being down 60 percent, other advatages to this car banning was that non-hybrid car companies lost revenue while hybrid and plug in cars were not.  This shows how people are aware of the pollution of cars.  Also, because of the reduced driving, the smog in Paris was cleared enough to stop banning certain vehicles from driving.