- Since 1970, aggregate emissions of the six principal pollutants have been cut 48 percent. During that same time,U.S. gross domestic product increased 164 percent, energy consumption increased 42 percent, and vehicle miles traveled increased 155 percent.
Growing cleaner, growing safer
More people driving more cars equals more pollution, right? Not necessarily. It seems paradoxical to many people, but we can grow, and grow cleaner. Case in point from the EPA: