By Herman Daly
The population problem should be considered from the point of view of all populations – populations of both humans and their artifacts (cars, houses, livestock, cell phones, etc.) – in short, populations of all “dissipative structures” engendered, bred, or built by humans. In other words, the populations of human bodies and of their extensions. Or in yet other words, the populations of all organs that support human life and the enjoyment thereof, both endosomatic (within the skin) and exosomatic (outside the skin) organs.
All of these organs are capital equipment that support our lives. The endosomatic equipment – heart, lungs, kidneys – support our lives quite directly. The exosomatic organs – farms, factories, electric grids, transportation networks – support our lives indirectly. One should also add “natural capital” (e.g., the hydrologic cycle, carbon cycle, etc.) which is exosomatic capital comprised of structures complementary to endosomatic organs, but not made by humans (forests, rivers, soil, atmosphere).
The reason for pluralizing the “population problem” to the populations of all dissipative structures is two-fold. First, all these populations require a metabolic throughput from low-entropy resources extracted from the environment and eventually returned to the environment as high-entropy wastes, encountering both depletion and pollution limits. In a physical sense the final product of the economic activity of converting nature into ourselves and our stuff, and then using up or wearing out what we have made, is waste. Second, what keeps this from being an idiotic activity, grinding up the world into waste, is the fact that all these populations of dissipative structures have the common purpose of supporting the maintenance and enjoyment of life.
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