Cities hold about half of the world’s population but account for 60 per cent of its energy use, according to the International Energy Agency, which is backed by developed country governments.
Many of the problems of urbanisation – local pollution, greenhouse gas emissions, provision of services and economic development – are linked to energy use.
In emerging economies, cities typically consume more commercially provided energy than rural areas. City dwellers are more likely to have access to electricity, to own energy-hungry consumer goods, and to work in places that need to be powered.
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