In the capital city of prosperity and a lot of people, but because of traffic jam, air pollution All cars will let the smoke out carbon dioxide which is floated on the atmospheric ozone destruction to the ozone in the atmosphere, some UV down, making the radiation coming from the sun shines in the world more and more. When there is more to make the world a UV radiation heat increases as well. And the carbon dioxide emissions from cars will make people and children in the area have the danger of inhaled carbon dioxide power and radiation UV too will affect the body and may be life threatening.