Industrialized countries are exploiting the world energy resources very quickly (although they do not have enough of their own energy reserves). On the other hand, population of the Third world simply exploded during the last few decades. Hence, the real problem may occur if the Third world metropolises follow the example of the auto-dependent, low density suburban development of American cities. The effects will be disastrous: 14 times more energy consumption and 9 times higher emissions of CO2 (in the sphere of urban transportation).