text: To begin, the car industry has been at an all time high. We're making cars so fuel efficient, it almost seems impossible. We even have hybrid cars, which run on electric and fuel (respectively). But with all of the cars out there, especially in the US, the pollution in nations and our own cities are at an all time high. China's air pollution is the worst in the world. Nations have been taking the initiative to partially ban car use for a few days. Paris for instance, banned motorists with even-numbered license plates from using their vehicles, switching to odd-numbered the following day.