text: Initialy, Pollution is increasing drastically and limiting car use will help decrease it. The usual effects of pollution from a car is the exhaust it lets out. Also, the factories that manufacture these cars are letting off smoke which in result pollutes the air people breath. In source 1 paragraph 5, it explains that passenger cars are responsible for twelve percent of greenhouse gas emissions in europe and up to fifty percent in some surbuban countries such as the United States. Therefore, the result of cars exhaust is hurting the enviroment and is one of the main causes of greenhouse gases. Source 2 paragraph 15, also states the cold nights and warm nights caused the warmer layer of air to trap car emissions. Explaining the air families and children breath is basically coming form a car's exhaust. Overall, pollution is a catastrophe and affects evryone dramatically.