Water bankruptcy: what the UN report on the future of access to drinking water reveals

From “crisis” to “water bankruptcy”: a paradigm shift

In its report published on 20 January 2026, the United Nations University (UNU-INWEH) introduces a concept that challenges water policies: ‘water bankruptcy’. Unlike the idea of a crisis, which suggests a temporary shock followed by a return to normal, bankruptcy reflects a structural imbalance: we are extracting and polluting beyond renewable supplies, while key elements of natural water capital (aquifers, wetlands, lakes, glaciers) are degraded to the point where full recovery is no longer realistic at the public policy level. This interpretation requires us to adapt our practices and infrastructure in a sustainable manner rather than simply aiming for a one-off ‘catch-up’.

This diagnosis is based on significant trends:

+50% of large lakes have lost volume since the early 1990s,
~70% of large aquifers show long-term declines.
~410 million hectares of wetlands have disappeared since 1970.
~75% of the world's population now live in countries with water insecurity,
~4 billion people experience severe shortages at least one month per year.

These figures paint a picture of a world that is living beyond its hydrological means.

What the UN calls ‘water bankruptcy’: Insolvency + irreversibility

The report formalises water bankruptcy through two inseparable dimensions:

Insolvency:
We are extracting (and polluting) more than renewable flows can safely provide.
Irreversibility:
Damage to water assets (e.g. compacted aquifers, drained wetlands, shrinking lakes) cannot be reversed within a single generation, or only at prohibitive costs.

Operational consequences

For the UN, this means moving beyond crisis management (emergency pumps, water imports, temporary measures) to bankruptcy management: account for water transparently, set enforceable usage limits, protect what remains of natural capital (aquifers, wetlands, soils, rivers, glaciers), reduce dependence on centralized volumes, and strengthen local autonomy for water treatment.

Note: water bankruptcy does not mean the total absence of water, but rather the impossibility of returning to the “old normal.” We need to reorganize our systems around safe access to drinking water, as close as possible to where it is used.

Why is access to drinking water becoming a matter of sovereignty?

Water sovereignty is not just a matter of large dams or cross-border treaties. At the level of households, schools, health centres, camps and cities, the ability to produce drinking water on demand, even when networks are under strain, is becoming strategic.

The UN report highlights that interconnected systems (agriculture, energy, supply chains, migration) transfer risks. When a region falls into water bankruptcy, shocks in quality and availability spread, particularly via food prices and migration flows, increasing the vulnerability of areas that are, in principle, better endowed.

Protecting local access to safe drinking water is therefore an investment in stability. This means that public policies and resilience strategies must complement centralised approaches with point-of-use water purification systems.

©UNU‑INWEH

Purificateur d'eau autonome et durable ORISA à côté d'un récupérateur d'eau de pluie

In France, 72 hours of water autonomy, and beyond...

In France, the government now recommends that every household have a 72-hour emergency kit containing water, non-perishable food, a radio, a first aid kit, etc. The official list specifies 6 litres of water per person in plastic bottles. This recommendation quickly reveals its limitations: weight, bulk, dependence on restocking.

To manage longer or repeated outages, the complementary approach is to make available water (rain, wells, streams, boreholes) drinkable at the point of use, using reliable, simple devices that do not require electricity.

Discover the ORISA^® water purifier

Le purificateur d'eau ORISA utilisé au Tchad par l'ONG SIF

NGO WASH programmes: from water trucking to local water purification autonomy

In many humanitarian operations, water is physically available (rain, ponds, rivers, wells) but is not drinkable (microbiological load, turbidity, pollution). In acute phases, the delivery of bottled water or water by truck remains essential. However, if the deterioration becomes structural, the response must evolve: reducing dependence on external supplies and strengthening local autonomy for domestic and community water purification. This is the meaning of the shift from crisis management to failure management recommended by the UN.

Why decentralised solutions are key:

Autonomy: They do not depend on the network.
Sanitary quality: On-demand production reduces the risk of recontamination associated with prolonged storage
Ownership: They focus on simple maintenance, repairability and local training.
Equity: They give control back to families, schools, health centres and populations that are often the most exposed.

ORISA^® humanitarian water filter

Solution study: ORISA^® autonomous ultrafiltration

Among the technologies suited to humanitarian contexts and domestic resilience, hollow fibre ultrafiltration (UF) is a proven benchmark for treating microbiological contamination in fresh water (excluding desalination). ORISA^® illustrates the attributes that NGOs and households are looking for:

Fine physical barrier: 0.01 µm, with LOG 8 reduction for bacteria (99.999999%) and LOG 5 for viruses (99.999%).

Operational autonomy: no electricity or chemicals required, manual pumping, flow rate up to 3 L/min.

Durability: integrated backwashing, replaceable membrane (approximately 20,000 L/membrane), spare parts available.

Reliability: More than 25,000 purifiers deployed in ~50 countries via international and local NGOs, for domestic and community use.

Uses of the ORISA^® water purifier in a home/outdoor setting

I would like to purchase ORISA® equipment.

AT HOME
Outdoor
Roaming

Uses of the ORISA^® water purifier in a humanitarian context

I would like information about ORISA®.

Chad
Burkina Faso
Colombia

eau sale et eau propre filtrée par le filtre à eau orisa

Conclusion: Managing bankruptcy means regaining control locally

The UN report acknowledges a reality: ‘normal’ no longer exists for a growing proportion of our water systems. Managing failure does not mean giving up; it means refocusing our choices on what is essential: protecting access to safe drinking water, as close as possible to users, on demand, in a fair and sustainable manner.

Fonto de vivo is part of this trajectory: strengthening water sovereignty through autonomous, repairable and proven purifiers.

Autonomy with ORISA^®

Humanitarian aid with ORISA^®