We have all read the headlines. Six weeks on, the images from this summer’s drought are still fresh: the record heat, the shrinking rivers, the barges stranded on the Rhine and the freight costs that climbed with every fall in the gauge. That story was followed closely, day by day, and it has been told thoroughly and well. What drew far less attention, and is clearer now with a little distance, is what happened behind it. Inside the plants themselves, the loss of reliable water quietly forced companies to cut output, reroute supply and, in some cases, stop production altogether. And beyond the plant gates, the same scarcity affected the communities around them: the quality of daily life, local employment, public services and the socio-economic health of places that depend on both reliable water and resilient industry. This is the part that matters most to anyone running an industrial business, and it leads to a conclusion that the shipping headlines obscured: this was not a freak season to be endured and forgotten. It is a lasting change in the conditions we operate under, and it calls for planning and collaborative action. Building water resilience in Europe will require collaboration across industry, policymakers, suppliers and communities, with concrete solutions that help reduce demand, increase reuse and protect both business continuity and shared resources.

I lead Ecolab’s Downstream Europe business, which means I spend most of my time alongside refiners, chemical producers and other energy-intensive manufacturers. Many of them sit on the banks of the Rhine, the Danube and the Seine, and felt the summer’s conditions first and most acutely. In the weeks since, my conversations with these customers have consistently led somewhere broader than their own operations. What happened was not the concern of any single sector, and the question I keep returning to is whether we are prioritizing the right resources. Are we doing enough to keep European industry viable in a future where water can no longer be taken for granted?

The story behind the headlines

The figures that made the news were striking. By early August, the gauge at Kaub had fallen to around 20 centimetres, below the record set during the 2018 drought, and within days it touched roughly seven. Kaub lies on the Middle Rhine in western Germany, between Mainz and Koblenz, and its reading is the one the whole industry watches. At that point in the season one would ordinarily have expected closer to 200, and below about 78 centimetres barges must begin lightening their loads. What gave the greatest cause for concern was the timing: in 2018 the low point did not arrive until late October, yet this summer it came in August.

The Rhine is far more than a picturesque waterway. It is Germany’s most important inland freight artery and connects Rotterdam and Antwerp to some of the largest chemical clusters in Europe, so when it falls the consequences travel quickly. Tanker freight rates from Rotterdam to Karlsruhe more than tripled within six weeks. The Kiel Institute has calculated that when Kaub remains below 78 centimetres for around a month, German industrial output declines by close to one percent.

What was less well reported: the impact inside the plant

Behind the freight figures sat a series of decisions that received far less coverage, yet tell the more important story. Looking back, these were real choices, taken by real companies over a matter of weeks.

Chemicals. A major polyurethane producer declared force majeure on polyether polyols at its Dormagen site, because a critical raw material can only reach the plant by ship, and the low water no longer permitted it. Europe’s largest chemical company did likewise on certain surfactants. A specialty producer headquartered in Cologne found several loading points rendered unusable, and moved what it could onto rail and road.

Steel and energy. A leading steelmaker in the Ruhrgebiet reduced blast-furnace output and suspended its own barge operations. A top utility producer publicly warned of a multi-million-euro impact from disrupted coal deliveries. Further east, low cooling-water levels on the Danube forced Romania’s Cernăvodă nuclear plant offline, which supplies around a fifth of the country’s power, while Hungary’s Paks plant, which provides close to half of national electricity, had to reduce output and raised the prospect of a full shutdown. These cases make clear that water scarcity is also a threat to Europe’s energy supply and resilience. It is no longer a north-versus-south climate discussion, but a continent-wide operational priority.

Beyond the rivers. In France, two-thirds of the aquifers that supply most of the country’s drinking water fell below normal, and 70% of France was under water-use restrictions. In the Netherlands, the Rhine’s inflow at Lobith dropped to about a third of the usual July level, below even the 1976 record. This is not solely a question of shipping lanes. A great many inland sites draw directly from aquifers and wells, and those sources are under pressure of their own.

This raises an uncomfortable question. If a single low river can idle reactors, halt barges and break supply contracts across half a dozen industries within the same few weeks, how sound is a model that assumes the water will always be there? My customers in refining and chemicals feel this most acutely, yet a food plant, a power station and a pharmaceutical site all draw on the same rivers, aquifers and wells. This was never truly a chemicals problem. It is an industrial one.

A one-off, or a permanent shift?

It is tempting to file 2026 under “exceptional” and move on. The science counsels otherwise. Researchers who study these events have concluded that climate change made this kind of hot, dry European summer considerably more likely, and warned that the conditions driving it could roughly double in frequency should warming continue. Germany estimates it has lost some 60 billion cubic metres of water over the past 25 years, and its own government has put the potential cost of water scarcity at close to 625 billion euros by 2050.

If that is the trajectory, then taking water for granted ceases to be an environmental oversight and becomes a direct commercial risk to the future of industry in Europe. A permanent shift cannot be managed as a seasonal inconvenience; it has to be planned for, invested against and corrected for in advance. If we can already see where this is heading, why do so many of us continue to plan around the exception rather than the rule?

Europe is moving. Is industry moving with it?

Water does not observe borders. The Rhine passes through four countries before it reaches the sea; the Danube touches ten. A plant’s reliability in one country can depend on how much water is drawn off in another, which is why the response is being coordinated at a European level. In June 2025, the European Commission adopted its Water Resilience Strategy, built around a “water efficiency first” principle and a target of improving the EU’s water efficiency by at least 10 percent by 2030. It signals firmer guidance of the existing Water Framework Directive, which governs how much water may be abstracted, and it frames water as a matter of competitiveness and security rather than of ecology alone.

National governments are tightening their frameworks in parallel. Germany has launched a nationwide low-water monitoring system; France’s Plan Eau seeks to cut withdrawals by 10 percent by 2030, with compulsory metering and “water sobriety” plans for industrial sites, and at the height of the summer almost 70 percent of the country was under some form of restriction. Spain has renewed its drought plans and the Netherlands escalated its shortage measures. The thread running through all of it is consistent: measure more, abstract less, and plan for scarcity.

The real question for the boardroom

Most of us have learned to treat energy and safety as serious, board-level disciplines. They are measured, resourced and owned from the top. Water is now moving in the same direction. As availability, regulation and community expectations evolve, it is becoming a core consideration for companies that want to protect continuity, control costs and strengthen resilience.

That shift matters because water sits at the intersection of three pressures building at once: a climate producing more frequent low-water years, evolving regulation that is placing greater focus on responsible water use and long-term resilience, and a public that expects industry to manage shared water resources responsibly alongside communities.

It also means treating the water-energy nexus as a core operating reality, not as two separate priorities to be addressed in sequence. As my colleague Geoff Townsend often reminds teams, the true cost of water is not simply what appears on the utility bill. It is tied to energy demand, cooling performance, treatment requirements, production reliability, downtime risk and, ultimately, the total cost of running an industrial plant. Seen this way, reducing, reusing and recycling water is not only an environmental measure. It is a practical route to efficiency, cost control and resilience, and should be pursued with the same urgency as other high-priority operational improvements.

This is where environmental responsibility and business resilience increasingly become the same conversation. Reducing freshwater dependency, understanding how much water each site uses and where it comes from, and building greater resilience into cooling, heating and production processes are no longer only questions of compliance. They are practical steps that can help protect operational continuity, strengthen competitiveness and support the long-term viability of industry in Europe. From what I hear in conversations with customers, the commitment is there. The opportunity now is to move from recognition to broader, faster action, scaling the solutions that make water efficiency, reuse and resilience part of how industrial sites operate every day. Safeguarding shared water resources and keeping European industry competitive are increasingly linked, and the sooner water resilience is treated as a core operating priority, the stronger our businesses and communities will be.

With a few weeks’ distance, I take the view that 2026 was a warning, and it came early. Whether we regard it as a single difficult summer or as the moment the ground shifted is, this time, within our control. The rivers have put the question to Europe’s industrial and political decision makers alike: will we continue to treat water resilience as a reaction to drought, or make it a core condition for competitiveness, energy security and community wellbeing?