text: Fuel is one of the causes that pollutes the air. According to the passage,"Diesel fuel was blamed, since france has... a tax policy that favors diesel over gasoline." In addition to that, diesel make up 67 percent of vehicles in france. Compared to a 53.3 percent average engines in the rest of western europe. Robert Duffer states that, "After days of near-record pollution, paris enforced a partical driving ban to clear the air of global city." Motorists with even-numbered license plates were ordered to leave their cars home or suffer a 22-euro fine ($31). Moreover, the same goes for odd-numbered plates. With that, the smog cleared enough for the ruling french party.