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NASA is recycling 98 percent of astronaut pee and sweat on the ISS into drinkable water
(www.engadget.com)
This is a most excellent place for technology news and articles.
Well, they're in space... so that makes a lot of sense.
We are technically in space I suppose, but the distinction is that we are close to a planet with a huge amount of fresh water nearby. If you live in a city, you can get copious water freely from a faucet almost free or charge, so yes.