The Energy Outlook considers the energy transition from three different viewpoints (sectors, regions and fuels) and by exploring a number of different scenarios. In the Evolving Transition scenario, world GDP more than doubles by 2040, driven by increasing prosperity in fast-growing emerging economies, as more than 2.5 billion people are lifted from low incomes. This rising prosperity drives an increase in global energy demand, although the extent of this growth is offset by accelerating gains in energy efficiency: energy demand increases by only around one third over the next 25 years. Industrial demand for energy accounts for around half of the increase in energy consumption; growth in transport demand slows sharply relative to the past.