"World energy consumption - beyond 500 exajoulesArchived 2016-12-20 at the वेबैक मशीन," Rembrandt Koppelaar, 16 Feb 2012, ... Energy consumption is still increasing rapidly, with an approximate 550 exajoules (523 Quadrillion BTUs) consumed at the primary energy level in 2010 ...
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"World energy consumption - beyond 500 exajoulesArchived 2016-12-20 at the वेबैक मशीन," Rembrandt Koppelaar, 16 Feb 2012, ... Energy consumption is still increasing rapidly, with an approximate 550 exajoules (523 Quadrillion BTUs) consumed at the primary energy level in 2010 ...