> He argued the tribe (sorry I don't remember its name) can fully sustain itself by taking things from nature around it. All their wealth is external. They possess little, but whenever they have a need for something - food, medicine, water, paint, clothes, containers(...) they go to a forest, harvest a specific plant and get it
IMO, one of the biggest myths is the myth of the primitive but efficient savage. Its almost always a "obscure tribesman" of some kind, be it a native American, or maybe an African tribesman... but the myth is always the same.
Apply the "Mythical Efficient Tribesman" to real life, and things start to go awry. The mythical Tribesman poops in the river when he needs to use the bathroom for example... if a city of 1-million+ people poop in the river however, it creates contamination and disease... and probably isn't good for the general environment either.
IIRC, the most efficient places on earth, as far as lowest environmental impacts, are generally cities. Cities with central sanitation to clean up sewage BEFORE it enters rivers for example.
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A sustainable economy is about closing the loop, keeping track of trash and doing something about it. Landfills and recycling centers are actually hugely efficient in the USA, especially some materials like Aluminum.
Waste Disposal centers have huge bins for a wide variety of items: textiles, metals, electronics, plastics, paper, oil, bio-wastes... each of which can be efficiently turned into new products.
For a lot of people, simply being aware of your local waste disposal center and their services would greatly improve your environmentalism. Don't throw away old Jeans, send them to the "textile" center to be recycled. Purchase "Plastic 1, 2, 3, 4, 5", but not Plastic 6 (which is harder to recycle and very few centers actually recycle it). Etc. etc.
Know what your city can offer and use their services. You don't need to run your own compost pile, just send your leaves / eggs / food waste to the landfill for it to be composted into mulch.
In my experience: rural areas of the USA have very few waste disposal services... and may even be running local "septic tanks" as their primary means of treating sewage. But even these more primitive means of sewage treatment are far superior to "primitive tribesmen" who resort to effectively dumping their sewage untreated in a river.