In 2013, transportation contributed more than half of the carbon monoxide and nitrogen oxides, and almost a quarter of the hydrocarbons emitted into our air. Cars have a very big impact on our live in our live in a lot of way. One way is the transportation and the other is the health impact because of the gases that were released by the car. A car has small explosions to make it move, those explosions are caused by the gas we put in it and that explosion has a out come of the gases released form the exhaust. Those gases cause pollution. Cars have such a impact on our lives we don't want to stop using them because we are to attached to them because we want to get to places faster. A lot of people use Uber because they can't buy their car, and the Uber driver gets payed for it. Most to the stuff in this world is caused by chemical we just need to see it.