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Originally Posted by Hersbird
clean waste water
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Some byproducts of waste water treatment can be used as agricultural fertilizer, enabling a lower cost for food and biofuels. Not to mention biomethane can also be obtained from waste water treatment.
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transportation to billions living with almost zero power usage
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And some cultural concerns make people feel "entitled" to own a conventional vehicle once they can afford it, even though sometimes a simpler and more affordable one could serve for the same purpose in a less "wasteful" way.