text: Cars release carbon monoxide into the atmosphere. If humans or any other living beings are heavily exposed to such gas they will die. "Passenger cars are responsible for 12% of greenhouse emission in Europe...50% in the U.S"(source1,p.5). Everytime we turn on our car engines we are harming ourselves. For small countries with little abundance of cars this might not be alarming at all. For huge economic countries such as the United States and France, car abundance is a serious deal. "Congestion was down 60% in the capital of France"(source2,p.14). The more abundant cars are the faster we are deteriorating ourselves. Cars cause broken acidents, broken highways, and heavy traffic, which leads to...acidents. Either way cars cause death so we might as well not have them at all. "When I had a car I was always tense. I'm much happier this way." Getting on a car is dangerous from whichever way you look at it. There's either angry drivers, drunk drivers, crazy drivers, and you're emitting monoxide gas. A world without cars is like our own little "world peace".