text: In Paris, France, a short driving ban occured due to massive air pollution. For two days, certain people were not allowed to drive on the roads to help reduce the about of smog. On Monday, only drivers who owned a vehicle with an odd-numbered license plate were allowed on the roads and on Tuesday, those rules were switched. Anyone who did not obey this rule was fined 22 euros ($31). This was a brilliant plan because the amount of smog in Paris was reduced by 60% after five consecutive days of it being quite strong. In France, diesel fuel makes up about 67% of automobiles, so this is what was blamed. The 67% is a high percent compared to the rest of Western Europe which averages at about 53.3%. Reuters, which is an international news agency that has its main headquarters in london, found that Paris has an unusually large amoun of smog compared to the rest of the European capitals. While Brussels had 114 micrograms of particulate matter (PM) and Londion had 79.7, Paris had the absurd number of 147. In Bogota, Columbia, their annual car-free day was created to decrease the smog and to promote other transportation options. The violators of this day had to pay a $25 fine. A businessman in Bogota responds with his opinion on this day with, "It's a good opportunity to take away stress and lower air pollution."