Question #259

Can a greenhouse decide when to vent?

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ResearchWater

Project Blue

Can affordable drinking water become available almost anywhere?

Why does this matter?

Water scarcity is rarely an absence of water. It is an absence of affordable energy and maintenance close to where people live.

What exists today?

Atmospheric water harvesting, solar stills and small desalination units. All of them work; few of them are cheap per litre.

What prevents it?

Cost per litre in the places that need it, driven by energy demand, membrane life and servicing.

Why hasn't this happened?

EnergyCostMaterialsMaintenance

Difficult problems stay difficult for reasons. Naming them is the first honest step.

What needs to change?

  • Sorbents that release water at lower energy.
  • Membranes that survive without skilled servicing.
  • Honest cost-per-litre reporting across climates.
  • Local repairability with local parts.

Possible disciplines

ThermodynamicsMaterialsSolarMechanical engineering

Future collaborators

NGOsUniversitiesManufacturersLocal operators

Learning log

  • Reading

    Atmospheric harvesting is an energy question long before it is a water question.

Research network

Nothing exists alone.

WaterEnergyMaterialsHealthManufacturingCities

Related questions

  • Can showers reduce fresh water use dramatically?
  • Can water quality be measured continuously and cheaply?
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Our Promise

We don't claim to have the answers.

We promise to ask questions worth exploring, test ideas honestly, publish what we learn, and build practical prototypes where we believe they can make a meaningful difference.

Working on part of this problem? We'd rather collaborate than compete.

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