Tag Archives: Khazzoom-Brookes Postulate

The inconvenient side effects of increased eco-efficiency

George Monbiot’s book Heat (reviewed here) includes a brief discussion on the difference between efficiency and reduction. Given that eco-efficiency is one of the buzzwords of sustainability, I want to highlight his discussion, as it seems to me to be very important for greens to be aware of the problem he outlines.

Monbiot notes that if a new consumer gadget or a new industrial production process or a refitted home uses 30% less energy than previously, then we might assume that 30% of the previous energy consumption has been saved. Unfortunately, due to some very inconvenient side-effects of eco-efficiency, this is not necessarily the case.

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Filed under climate change, David, sustainability