this post was submitted on 28 Feb 2026
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This has been debunked before. To get 1000liter of water out of the air, the air needs to hold that much water.
This is a bit more serious than the old, frequently-debunked "dehumidifier in the desert" stuff, because it doesn't depend on cooling the air to get the water out, but using a molecular sponge. If you pump enough air over that, you'll eventually fill it up, and you can drive the water out by heating it up.
The guy behind this is a serious organic chemist, and his Nobel prize was actually for pioneering and developing these molecules, so it's not a case of "Nobel prize winner does daft stuff about a subject he's not an expert in", either.
I'm still reserving judgement on whether this will be economically sensible, but I'm not dismissing it immediately, either.