The charts are from the article "How Will Energy Demand Develop in the Developing World?" by Wolfram, Shelef, and Gertler.
Much of the energy consumption comes from cars and refrigerators. For example, in Mexico:
Notice the S-shaped in energy consumption as annual consumption increases. Don't miss the table that reports the electrification rates in countries where the most people live without electricity. China is not in the list, electrification rate in China is nearly 100 per cent.
The authors argue that as a consequence of this nearly all of the growth in energy demand, pollution and greenhouse gas emissions will come from the developing world. One can anticipate even more intense debates over the environment and economic growth.