precedent that urbanization led to broader transitions to modern energy services. However, access to modern energy services in cities is predicated by an increase in income, which is difficult to find in the economies of many African cities. This has led to only 25% of the Africans living in urban centers to have electricity access. Furthermore, as Africa’s population increases access to energy has not increased proportionally. Between 1970-1990, only 50 million people gained access to electricity against a population gain of 150 million. The largest barriers people in urban centers face in accessing energy is the huge cost compared to their relatively low incomes. The urban poor spend 10-30% of their income on energy, whereas the non-poor spend only 5-7% of their income. Addressing energy poverty Energy is important for not only economic development but also public health. In developing countries, governments should make efforts on reducing energy poverty that have negative impacts on economic development and public health. The number of people who currently use modern energy should increase as the developing world governments take actions to reduce social costs and to increase social benefits by gradually spreading modern energy to their people in rural areas. However, the developing world governments have been experiencing difficulties in promoting the distributions of modern energy like electricity. In order to build energy infrastructure that generate and deliver electricity to each household, astronomical amount of money are first invested. And lack of high technologies needed for modern energy development have kept the developing countries from accessing modern energy. Such circumstances are huge hurdles; as a result, it is difficult that the developing countries governments participate in effective development of energy without external aids. International cooperation is necessary for framing developing countries' stable future energy infrastructure and institutions. Although their energy situation have not been improved much over the past decades, current international aids are playing an important role in reducing the gap between developing and developed countries associated with the use of modern energy. With the international aids, it will take less time to reduce the gap when comparing to nonexistence of international cooperation. The World Bank says that financial help should not be general fossil fuel subsidies, but should instead be targeted to those in need. International efforts China and India which account for about one third of the global population have booming economies, and other developing nations show similar trends