If I’ve said once that those among us who tout renewable energy should pay more attention to the 2nd law of Thermodynamics, I must have said it a hundred times. But I hardly ever get the impression that people understand why. And it seems so obvious. A quote I often use from Herman Daly and Ken Townsend, when I talk about energy, really says it all:
“Erwin Schrodinger (1945) has described life as a system in steady-state thermodynamic disequilibrium that maintains its constant distance from equilibrium (death) by feeding on low entropy from its environment – that is, by exchanging high-entropy outputs for low-entropy inputs. The same statement would hold verbatium as a physical description of our economic process. A corollary of this statement is that an organism cannot live in a medium of its own waste products.”
Using energy produces waste. Using more energy produces more waste. It doesn’t matter -much- what kind of energy is used, or what kind of waste is produced. The energy WE use produces waste, in a medium of which WE cannot survive. The only way to escape this is to use less energy. And because we have used such an enormous amount of energy the past 100 years, we must use a whole lot less in the next 100.
We use about 100 times more energy per person, and a whole lot more in the west, than our own labor can produce. We use the equivalent of what 500 billion people can produce without the aid of fossil fuel-powered machines. We won’t solve this problem with wind turbines or solar panels. There really is one way only: cut down on energy use.
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