27 Sep '17, 1am

Energy and Authoritarianism

Energy and Authoritarianism

Even before the onset of decline in gross world energy production we are probably already beginning to see a fall in per capita energy , and also net energy—energy that is actually useful to society, after subtracting the energy that is used in energy-producing activities (the building of solar panels, the drilling of oil wells, and so on). The ratio of energy returned on energy invested (EROEI) for fossil energy production has tended to fall as high-quality deposits of oil, coal, and natural gas are depleted, and as society relies more on unconventional oil and gas that require more energy for extraction, and on coal that is more deeply buried or that is of lower energy content. Further, renewable energy sources, especially if paired with needed energy storage technologies, tend to have a lower (some say much lower) EROEI than fossil fuels offered during the glory days of...

Full article: http://www.postcarbon.org/energy-and-authoritarianism/

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