Emissions from motor vehicles in the United States are a small portion of human-induced carbon dioxide that itself comprises only a small fraction of all releases of greenhouse gases. The EPA should not target cars for stricter clean air standards. Automobile emissions have been reduced by as much as 95 percent, and the air is substantially cleaner. While the incidence of asthma has increased, car pollution has gone down. The likely cause is indoor air pollution from dust mites, mold, and other bioaerosols locked into homes that have been sealed up to save energy.
Traffic congestion threatens mobility.
Congestion results from the government's continuing failure to maintain and improve road capacity. Your Car, Your Government, Your Choice James D. Johnston is a resident fellow at the American Enterprise Institute. He was vice president of General Motors for industry-government relations and special assistant to the president of the Automobile Manufacturers Association. Earlier he was a career foreign service officer, serving at the Department of State in the Bureau of Far Eastern Affairs and at the U.S. Embassies in Mexico and Nicaragua. He was special assistant to the under secretary of state.