The new geography of water stress is testing public responsibility

The new geography of water stress is testing public responsibility | Photo: Geetanjal Khanna

Published on 19 June 2026 at 02:39 GMT

By Editorial Team SDG6

Water stress is no longer a problem confined to deserts, drought-prone regions or countries long associated with scarce rainfall. It is becoming a wider civic issue, shaped by climate change, agricultural demand, expanding cities, tourism pressure, pollution, ageing infrastructure and political choices about who gets access to water first. That shift matters because water is not only a natural resource. It is also a test of public planning, social fairness and institutional accountability.

The geography of water scarcity is changing. Traditional drylands remain highly exposed, including parts of the Middle East, North Africa, South Asia and the Horn of Africa. But pressure is also rising in places once seen as relatively water secure, including parts of southern Europe, North America, China, Latin America and coastal tourist economies. The World Resources Institute has warned that 25 countries face extremely high water stress each year, meaning they use more than 80 per cent of their renewable water supply for homes, farms, industry and livestock.

This does not mean every place is running out of water in the same way. Some areas face long droughts. Others have enough rainfall overall, but poor storage, leaking pipes, polluted rivers or weak regulation. In many places, the problem is seasonal. UN-Water estimates that about 4 billion people experience severe water scarcity during at least one month of the year, while agriculture accounts for most global water withdrawals.

The result is a more complex map of risk. A city may have reservoirs, but still impose restrictions during heatwaves. A farming region may appear productive, while quietly drawing down aquifers faster than nature can refill them. A tourist island may welcome record visitor numbers, while local residents face rationing, higher bills or declining groundwater quality. Water shortage is therefore not only a question of rainfall. It is increasingly a question of demand, distribution and governance.

The strongest link is with SDG 6, clean water and sanitation. The goal is not limited to household taps and toilets, although those remain essential. It also covers water quality, efficient use, integrated management and protection of water-related ecosystems. In journalistic terms, that makes SDG 6 a measure of whether societies can manage an essential resource before scarcity becomes crisis.

Agriculture sits at the centre of the issue. UNESCO reports that farming accounts for roughly 70 per cent of global freshwater withdrawals, while groundwater provides about a quarter of all irrigation water and half of freshwater withdrawn for domestic purposes. This makes food systems both vulnerable to water stress and major drivers of it. Irrigation can protect harvests, jobs and rural incomes, but poorly regulated expansion can deepen groundwater depletion, damage rivers and create competition between farms, towns and ecosystems.

This tension is visible in many water-stressed regions. Export crops, livestock feed, fruit, vegetables and other high-value products can bring income, but they may also concentrate water use in areas already under pressure. The question is not simply whether agriculture uses too much water. It is whether public authorities have reliable data, enforceable permits, fair allocation rules and incentives for farmers to shift towards more efficient and resilient practices.

Cities face a different version of the same challenge. Rapid urban growth raises demand for drinking water, sanitation and energy. Informal settlements are often the first to suffer when networks are incomplete or unreliable. Wealthier households may buy private storage tanks or bottled water, while poorer households pay more per litre from vendors. UNICEF notes that water scarcity can limit safe drinking water and hygiene, disrupt sanitation systems and increase disease risks when services fail.

Tourism adds another pressure point. Hotels, swimming pools, golf courses, cruise infrastructure and seasonal populations can increase water use sharply in coastal and island destinations. This does not make tourism inherently incompatible with water security. It does mean that visitor economies need transparent planning, realistic carrying capacity assessments and rules that prevent residents from bearing the costs of overuse. In water-stressed destinations, tourism pressure can become a fairness issue as much as an environmental one.

The climate dimension is unavoidable. Hotter temperatures increase evaporation, alter rainfall and intensify droughts in some regions. At the same time, floods can damage water systems, contaminate supplies and overwhelm sanitation. Water stress and flooding can therefore exist in the same country, sometimes in the same year. This is why climate adaptation must include water storage, watershed protection, demand management, drought planning, wastewater reuse and resilient public services.

Weak institutions can turn scarcity into crisis. Weak water governance may include fragmented agencies, outdated water rights, unmetered extraction, poor enforcement, corruption, underfunded utilities or a lack of public information. When authorities do not know how much water is being withdrawn, or by whom, planning becomes guesswork. When restrictions are imposed late or unevenly, trust declines. When powerful users avoid limits, scarcity becomes a visible injustice.

Civil society has an important role, but it cannot replace the state. WaterAid works on access to clean water, sanitation and hygiene, particularly for communities left behind by public systems. The International Water Management Institute focuses on water, agriculture and resource management. The Stockholm International Water Institute works on governance and water security. These organisations can provide research, field experience and accountability, but lasting change depends on public institutions that can plan, regulate and invest.

Water stress also connects to other SDGs. It affects SDG 2 (zero hunger) through irrigation and food prices, SDG 3 (good health and well-being) through disease prevention and sanitation, SDG 11 (sustainable cities and communities) through urban services, and SDG 13 (climate action) through adaptation. These links are practical rather than symbolic. A failed water system can close schools, reduce harvests, weaken health services and deepen inequality.

The economic debate is also shifting. The Global Commission on the Economics of Water has argued that the hydrological cycle should be treated as a global common good, reflecting how land use, forests, rainfall and atmospheric moisture connect regions across borders. The World Bank Group launched Water Forward in 2026 with an ambition to improve water security for more than one billion people by 2030, including through infrastructure, irrigation modernisation and data-driven planning.

Yet finance alone will not solve the problem. Desalination may help some coastal areas, but it is expensive, energy-intensive and not suitable everywhere. Large reservoirs can support supply, but may displace communities or damage ecosystems. Water markets may improve efficiency in some contexts, but can worsen inequality without safeguards. Reuse and recycling are promising, but require public trust, regulation and investment.

The central issue is therefore political responsibility. Water policy requires difficult choices before shortages become visible. That includes pricing that protects basic needs while discouraging waste, investment in leak reduction, protection of wetlands and watersheds, restrictions on unsustainable extraction, support for farmers during transition and clear rules for industry and tourism.

The new geography of water stress shows that scarcity is not only spreading across maps. It is spreading across public systems. A society’s response reveals whose needs count, whose consumption is protected and whether institutions are capable of planning beyond the next dry season. In that sense, water is becoming one of the clearest tests of sustainable development: whether essential resources can be managed fairly, transparently and within ecological limits.

This article was reviewed and published with the assistance of Artificial Intelligence.

Further information:

•    UN-Water, relevant for global data and coordination on SDG 6, water scarcity and water governance. https://www.unwater.org/

•    UNESCO world water assessment programme, relevant for evidence on global water use, groundwater, freshwater withdrawals and the United Nations world water development report. https://www.unesco.org/reports/wwdr/

•    World Resources Institute aqueduct, relevant for water-risk mapping and analysis of countries facing high and extremely high water stress. https://www.vri.org/aqueduct

•    UNICEF water, sanitation and hygiene, relevant for the impact of water scarcity on children, health, schools and vulnerable communities. https://www.unicef.org/wash

•    WaterAid, relevant for civil society work on clean water, sanitation, hygiene and accountability in underserved communities. https://www.wateraid.org/