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Future energy demand and supply
Future energy demand and supply

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Figure 3 The unequal geographic distribution of proven reserves of fossil fuels. The reserves are expressed in billions of tonnes of oil equivalent (toe), so that those for each fossil fuel can be compared with the others in terms of their primary energy content (1 toe = 42 GJ). Note: Oil reserves are dominated by those in the Middle East (61.7%); natural gas by the Russian Federation and Middle East (67.3%); coal is more equitably distributed. * The coal reserves of Africa and the Middle East have been combined in this figure.

 1 The present-day perspective