Water insecurity, driven by water scarcity, excess, and pollution, is rapidly becoming a threat to Europe’s economic and price stability. In a new guide, WWF urges central banks, financial regulators and supervisors to treat the global water crisis as a systemic financial risk and to enable the transition towards a water secure economy able to withstand future shocks.
“Stable economies rely on stable water systems,” says Carolin Carella, co-author of the guide, and Research Lead WWF Greening Financial Regulation Initiative. “But as water systems lose resilience and the hydrological cycle grows more volatile, financial risks are rising.”
In Brussels, voices from across the water, food and drink, and aquaculture sectors recently highlighted the importance of stable and sound water protection laws at EU level, opposing the European Commission’s decision to revise the Water Framework Directive. This concern is increasingly echoed within financial circles, as EU financial authorities begin to recognise the implications of water risks for economic stability.
“There is a growing realisation among financial supervisors in the EU that freshwater risks are fundamentally linked to large parts of Europe’s economy, determining whether businesses can operate and whether loans can be repaid. That’s why water is moving from the margins of environmental policy to the centre of financial stability debates,” said Dominyka Nachajute, Sustainable Finance Policy Officer at WWF EU.
WWF’s new guide highlights how water stress is already hitting Europe’s economy and markets. Climate-driven flooding is becoming more frequent and severe: between 1980 and 2024, weather- and climate-related extremes caused asset losses estimated at EUR 822 billion in the EU, with a quarter of that, over EUR 208 billion, lost between 2021 and 2024 alone. Meanwhile, droughts and floods are pushing up prices and disrupting supply chains, while water depletion and pollution are undermining water supply, cutting company revenues, weakening public finances and driving insurance losses.
Joint research by the European Central Bank (ECB) and the University of Oxford shows that water scarcity is already putting around 15% of the euro‑area’s economic output at risk, while over 30% of bank lending is exposed to sectors vulnerable to water shortages.
Despite that, the financial system continues to fund water-intensive activities, creating a dangerous feedback loop. Sectors such as agribusinesses, textiles, manufacturing, mining and energy are placing unsustainable pressure on freshwater ecosystems. In Spain, for example, structural droughts in regions like Andalusia and Catalonia are already exposing these financial risks, and a new case study evaluates whether financial institutions are adequately assessing water-related financial risks.
While awareness is growing, the intricacies of water risks remain poorly reflected in financial disclosures and risk management practices. To address this gap, the guide outlines practical steps for central banks, financial supervisors and regulators. They range from embedding water risks into existing frameworks in the short term to aligning monetary, prudential and fiscal policies over time, as well as encouraging investments in nature‑based solutions, such as restoring wetlands and floodplains which allow water to be stored in the soil and groundwater to recharge. It emphasises the need for precautionary action, noting that water systems can reach tipping points with irreversible economic consequences, and provides evidence of why water risks matter financially, practical tools and data to assess exposure, and case studies showing how a more water‑secure economy can be built.
