text: Additionally, reducing car usuage also cuts down smog. Smog is another deadly gas that isnt just dangerous to the environment, but also to us. Smog is polluted air which can cause sickness. Many cities around the world are increasing in smog due to the overusuage of cars. For example Paris almost broke the record for polluted air, which is held by China, one of the most polluted cities in the world (source 2.) If we reduce the usuage of cars, we promote cleaner air for ourselves. Just by limiting the car usuage for five days in Paris, the smog went down sixty percent (source 2.) The advantage of limiting car usuage would be cleaner air.