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Comment by ianai | Hacker News Reader

Crazy talk time. I wonder if we could have a national water grid that used air currents to push water inland from the seas. Then capture it with stuff like this.

It says this type of capture system works when RH<30%. Places like LV routinely see RH<.5%, for reference.

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> Crazy talk time. I wonder if we could have a national water grid that used air currents to push water inland from the seas. Then capture it with stuff like this.

Isn't this just basically describing rain? Air currents pushing water inland? A national water grid? That's just the water cycle mate.

I'm not sure pushing water vapor from the oceans and collecting the increased humidity from the air is energy efficient with mountains nearby, but the idea is really creative and kudos to those that came up with and might end up implementing it to solve water access issues.

They're talking about evaporating water and capturing the humidity up a hill. Not really rain.

Something like this. It’s probably a question of whether wind currents could reliably take some well positioned humidity from water outlets further inshore. Might be totally overcome by the mountains though.

It is not a crazy idea to develop infrastructure around such a goal though. Vast amounts of energy goes into aluminum production. So countries built huge power works for exactly that purpose.

Isn't this exactly what happens in California, only the mountains right along the coast prevent that moisture from going inland very far?

Good point. Still a nice upgrade from >70 or >90 systems that aren't helpful unless in specific conditions. Also promising on the materials side -- cheap

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