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by pbhjpbhj
2903 days ago
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Unclean drinking water supposedly kills 500,000 a year (eg https://www.news24.com/Green/News/two-billion-people-drinkin...). We could probably fix that without need for any new technology and with only minimal changes to the eco-system. I wonder which costs more. [Yes, I know it doesn't work like that and that these are not mutually exclusive.] |
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