text: According to source 2 'Paris bans driving due to smog', the city of Paris, France enforced a partial ban to clear the air of the global city. Almost 4,000 drivers were given a 22-euro fine, which is equivalent to $31, because they were driving their cars. Diesel fuel was at fault for the excessive amount of smog in the city. Diesels make up 67% of the vehicles in France. The goal was to decrease the amount of smog throughout the city.