text: "...transportation is the second largest source of America's emissions..." (Rosenthal, line 37) Motor vehicals cause so much danger to Earth. The amount of pollution is so high and dengerous. It is much easier to prevent than everyone believes. One could simply take the bus, ride a bike, only drive to work and needed places, walk, and even car pool. There are an abundant amount of ways to prevent so much pollution and stress. It's all over the world that this is an issue; Paris, Colombia, the United States, and many other places. "Passenger cars are responsible for 12 percent of greenhouse gas emissions in Europe . . . and up to 50 percent in some car-intensive areas in the United States. " (Rosenthal, line 11). That is a lot. It isn't difficult to help prevent this.