This article underlines the main implications of the interrelations between the energy problem and that of environmental pollution, using the most widely used macroeconomic indicators in the field of policy analysis. In fact, carbon dioxide (CO₂) emission intensity and energy intensity trends...

All advanced industrialized societies face the problem of air pollution produced by motor vehicles. In spite of striking improvements in internal combustion engine technology, air pollution in most urban areas is still measured at levels determined to be harmful to human health. Throughout the...