Earth is spending its water savings faster than it can replenish them, and the bill is coming due everywhere. That is the stark warning from Kaveh Madani, the youngest person ever to receive the Stockholm Water Prize — often called the Nobel Prize of water — and the scientist who coined the term "global water bankruptcy."
Madani, who directs the United Nations University Institute for Water, Environment and Health, authored a January UN report warning that the world has entered an era in which entire freshwater systems have been irreversibly damaged. As Live Science reported, continents are losing enough water each year to meet the needs of 280 million people, driven by relentless groundwater pumping and the draining of rivers.
"In every continent where humans are present, water bankruptcy is manifesting itself," Madani said. His work applies game theory to human-water interactions, helping explain why traditional engineering models fail to capture real-world complexity. People don't behave like equations predict; they overuse shared resources, ignore long-term consequences, and respond to political incentives that often run counter to sustainability.
Madani knows the political costs of speaking truth about water. Born in Tehran in 1981, he returned to Iran in 2017 at the government's invitation to serve as deputy vice president and deputy head of the country's Department of Environment. His reform proposals clashed with powerful interests. State-aligned media branded him a "water terrorist," and he was arrested and interrogated multiple times before being forced into exile.
Now based internationally, Madani is raising alarms about a new threat to water supplies: the explosive growth of artificial intelligence and the data centers that power it. These facilities require enormous quantities of water for cooling, adding pressure to resources that are already stretched thin across the globe. His message is blunt — the water crisis is not a future problem. It is already here, on every continent, and the window for preventing catastrophe is closing fast.
