Water World
We tend to think of AI as a software problem, weightless and waterless, but even a 100-word email written with ChatGPT has been estimated to require roughly a bottle’s worth of water once data-centre cooling and electricity generation are counted — and scaled to global demand, researchers project AI could withdraw 4.2 to 6.6 billion cubic metres of water a year by 2027, roughly half the United Kingdom’s annual freshwater withdrawals.
The seemingly weightless technology powering AI assistants carries an enormous physical thirst—one that could drain as much freshwater annually as half of Britain consumes.
Jul 25, 2026
