World Bank Flags “Virtual Water” Crisis
Every cup of coffee, cotton shirt and loaf of bread carries an invisible cost: the billions of litres of freshwater consumed in their making, long before they reach any shelf or table. A new World Bank report has placed this hidden burden at the centre of the global trade conversation, warning that the world moves an estimated 500 billion tonnes of so-called virtual water through international commerce every year.
Virtual water refers to the freshwater consumed during production processes but absent from the finished product. The World Bank estimates this flow accounts for roughly a quarter of total global water use and is equivalent to about 50 times the weight of all goods shipped annually by sea. A single cup of coffee, the report notes, requires approximately 150 litres of water to produce, while a standard breakfast, factoring in sugar, milk and baked goods, can consume more water than many households use in an entire day.
Over the past two decades, virtual water trade has expanded by approximately 50 per cent, driven by rising incomes, shifting dietary patterns and increasingly complex global supply chains.
The report acknowledges some benefits. Crop trade alone saves an estimated 500 billion cubic metres of water annually, as agricultural production tends to be located in regions where water resources are more efficiently used. Water-dependent sectors spanning agriculture, energy and industry support approximately 1.7 billion jobs worldwide, underlining the economic stakes tied to water efficiency.
However, the gains are not evenly distributed. About one-fifth of irrigation water embedded in traded goods originates from water-stressed regions, effectively exporting scarce freshwater resources and compounding long-term economic vulnerabilities for those countries.
The World Bank identified trade policy as a key lever. Import tariffs, subsidies and regulatory standards shape competitiveness across water-intensive industries including agri-food, textiles, leather and chemicals. Tariffs on water-saving technologies such as drip irrigation systems, smart meters and wastewater treatment equipment were flagged as barriers slowing efficiency adoption.
Governments are increasingly turning to non-tariff tools. Australia’s water-efficiency labelling scheme and the European Union’s corporate sustainability due diligence framework were cited as policy models influencing water outcomes across supply chains. Trade agreements between the EU and Chile and between Japan and Australia were also highlighted for incorporating environmental cooperation on water management.
Private firms are stepping up too, with multinationals setting internal targets to cut water use in manufacturing and pushing suppliers toward more efficient irrigation and processing practices.
The World Bank cautioned that reforms must be phased carefully to avoid disrupting producers and consumers, particularly in developing economies. Measures proposed include gradual disclosure of water footprints, improved supply-chain traceability and targeted investment in water-efficient technologies.
The institution said it would continue supporting governments in aligning trade and water policy, warning that managing virtual water flows will be critical to safeguarding economic growth, employment and global water security in the decades ahead.