The Humidity Harvest — Water From Thin Air

A Peltier thermoelectric device creates a cold surface below the

dew point. Atmospheric humidity condenses on that surface and drips

into a collection tray. The device costs $12. The water costs

nothing.

Three countries have moved to classify atmospheric water extraction

under water rights legislation. The global bottled water market

generates $283 billion annually. U.S. municipal water utilities

collected $73 billion in 2023. Neither industry has a distribution

incentive to tell you this technology exists.

The physics have been documented since Roman engineers built dew

collectors in 300 BC.