Annual absolute energy demand added as a result of population growth

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Annual absolute energy demand added as a result of population growth

Source : Tom Murphy, originally published by Do the Math
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India adds about 15 million people per year (wow). China adds a little over 6 million. Nigeria is next, at about 4 million. Then we have the U.S., adding 3 million per year. But of those, the U.S. is the hungriest in energy terms. The graph shows how many petajoules (PJ) of demand are added each year per country due to population growth (other factors can also contribute to energy growth or decline; here we isolate the population portion). For reference, the entire world's annual appetite is 530,000 PJ. What we see is that population growth in the U.S. is adding energy demand faster than any nation on Earth. China and India are also important (and in absolute terms they are certainly more important energy growers, due to a rapidly changing standard of living). But the answer to the question: who's population growth is having the largest effect on global energy demand? - it's the U.S.

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