The world has entered a dangerous new era of “global water bankruptcy” — one in which rivers, aquifers, glaciers and wetlands have been damaged and depleted beyond realistic recovery, amajor new reportfrom theUnited Nations Universityhas warned. The report released by theUN University Institute for Water, Environment and Health(UNU-INWEH) argues that the familiar terms “water stress” and “water crisis” are inadequate as they no longer capture today’s reality. “The language of crisis — suggesting a temporary emergency followed by a return to normal through mitigation efforts — no longer captures what is happening in many parts of the world,” it said.
In many regions, human–water systems are already in a post-crisis state of failure. Over decades, societies have withdrawn more water than climate and hydrology can reliably provide, drawing down not only renewable flows but also the “savings” stored in aquifers, glaciers, soils, wetlands and river ecosystems. At the same time,pollution, salinisation and other forms of water quality degradation have reduced the fraction of water that is safely usable.
The consequences are visible on every continent: rivers that no longer reach the sea, shrinking lakes, wetlands and glaciers, aquifers pumped down until land subsides and salt intrudes, forests and peatlands drying and burning, deserts and dust storms expanding, as well ascities repeatedly pushedto the brink ofDay Zero. The report said these were not simply signs of stress or episodes of crisis but “symptoms of systems that have overspent their hydrological budget and eroded the natural capital that once made recovery possible” with knock-on effects for food prices, employment, migration and geopolitical stability. “This report tells an uncomfortable truth: many regions are living beyond their hydrological means and many critical water systems are already bankrupt,” saidKaveh Madani, the lead author of the report and director of UNU-INWEH, known as the UN’s think tank on water.
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Water bankruptcy, the report explains, happens when long-term withdrawals exceed renewable inflows and safe depletion limits, causing irreparable or prohibitively costly damage to rivers, lakes, aquifers, wetlands, soils and glaciers. “Water bankruptcy is not only about the ‘insolvency’ of the system but also about its ‘irreversibility’. Some damages are physically irreparable on human time scales: compacted aquifers do not rebound, subsided deltas do not rise, extinct species do not return and lost lakes cannot be restored within planning horizons,” the report notes. It says declining stocks, polluted rivers, degrading aquifers and salinised soils mean the “truly usable fraction of available water is shrinking,” even where total volumes may appear stable.
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