text: Next I will say how having less cars will affect the world's pollution. The people of the world rely on using cars wether it's to go to another state or just for a drive to the corner store. People have burned so many fossil fuels into the air that smog levels can reach record highs everyday. In Paris their was a day where they almost reached a record high and thye had to take half the people off the road and if they used their car anyway they would get fined. This caused the smog level to go down to a safe level after just five days. Smog can't go away over night do to warm daytime hours and cold night time hours and it would get trapped in an air pocket. But i guess this was just a close call.