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World energy increased by ten times from 1930 to 2005

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The world increased energy usage by ten times from 1930 (50 exajoules) to 2005 (500 exajoules).

In 1995-2010, about 90% of the world energy was from coal, oil, natural gas and biofuel (mainly wood, ethanol and sugar cane).

In 2012, total world energy consumption was 553 exajoules (553×10^18 J=153,611 TWh), equivalent to an average power consumption of 17.54 TW (or 0.724 on Sagan's Kardashev scale).

Two civilizations could have the same energy usage on the Kardeshev scale (say 0.75) but one might be all coal power while the other could be producing all of its power with nuclear fusion reactors.

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Scott Baker is a Managing Editor & The Economics Editor at Opednews, and a blogger for Huffington Post, Daily Kos, and Global Economic Intersection.

His anthology of updated Opednews articles "America is Not Broke" was published by Tayen Lane Publishing (March, 2015) and may be found here:

Scott is a former President of Common Ground-NYC (, a Geoist/Georgist activist group. He has written dozens of articles for (more...)

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