“The drive for clean air” was published by O’Toole Randal during the fall of 2001. This article shows how cars pollute in such a degree, that it can create multiple health problems, reduction of visibility, acid rain and even global warming! Not all is lost as the United States did make some changes. In the past 30 years, the government dramatically decreased air pollution from cars by regulating them. Some strategies to reduce the amount of driving people did nothing but harm. One of these strategies consisted in augmenting congestion.