Figure 2.
World fuel ethanol production and crude oil prices, 1970–2007. (a) Licht (2007). (b) Real prices. Crude petroleum. World Bank Database (Constant 1990 USD). (1 barrel = 159 litres.)

World fuel ethanol production and crude oil prices, 1970–2007. (a) Licht (2007). (b) Real prices. Crude petroleum. World Bank Database (Constant 1990 USD). (1 barrel = 159 litres.)

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