Talanx Purpose Stories - Rhein

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At present, drought and extreme heat have caused Rhine water levels to fall to their lowest levels since records began. Shipping is severely restricted in many areas, with vessels operating at reduced capacity and cargo having to be rerouted to road and rail transport or alternative ports. The Rhine, one of Europe’s strongest economic regions, is among the continent’s most important transport corridors, connecting key industrial centres and serving as the backbone of industrial value creation.

The cause: months of drought and exceptionally high temperatures. According to the International Commission for the Protection of the Rhine (ICPR), such low-water periods may become more frequent, prolonged and severe as a result of climate change. At the same time, the balancing effect of snow and glacier melt in the Alps is steadily diminishing.

The consequences: rising transport costs, supply chain disruptions, and growing pressure on ecosystems, drinking water resources and water-dependent industries. By the end of the century, the region could face a threefold threat:

• Longer and more frequent periods of low water
• Rising water temperatures
• An increasing risk of river flooding

HDI Risk Consulting (HRC), a wholly owned subsidiary of HDI Global, identifies climate-related risks that can significantly affect key economic regions and cultural landmarks. The River Rhine assessment was headed by Dr Nina Lenz. She holds a doctorate from Kiel University and brings nearly four years of research experience from the GEOMAR Helmholtz Centre for Ocean Research Kiel, with a scientific background in geosciences.

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" What makes the Rhine particularly complex is the fact that flood and low-water risks evolve differently over the course of the year. Climate projections indicate that, by 2070, the flood season will increasingly shift towards winter, as precipitation is expected to fall more frequently as rain rather than snow. Winters are expected to see more frequent and more intense heavy rainfall events, increasing the risk of flooding, while summers are projected to be marked by longer and more severe droughts and prolonged periods of low water levels. Businesses along the river need to plan for both extremes."Dr. Nina Lenz, HDI Risk Consulting Risk Analyst Natural Hazards and Climate Risks

Heavy Rainfall and Fluvial Flooding Threaten Industrial Value Creation

Around 80 per cent of Germany’s inland waterway freight transport is handled via the Rhine. However, as a result of climate change, heavy rainfall events and flood risks are increasing and can lead to temporary closures of individual river sections. The consequences extend far beyond transport delays, affecting entire industrial value chains. At the same time, many industrial sites along the Rhine are directly threatened by flooding

Economic Pressure From Rising Extreme Temperatures

Forecasts by the Central Commission for the Navigation of the Rhine and Germany’s Federal Ministry of Transport and Digital Infrastructure (BMVI) indicate that, under a “business-as-usual” scenario, the number of low-water days will double by 2100. By the end of the century, the Rhine could experience up to two months of low-water conditions per year on average.

Of particular significance is the Kaub gauge, one of the most important indicators for navigability along the Rhine: Modelling shows that water levels below 78 centimetres can lead to lost production value of up to €3.4 billion. By 2100, companies must also factor in transport cost increases of up to 10 per cent.

In addition, the warming of the Rhine is creating further challenges for businesses and industrial sites along the river. According to the BMVI, the Rhine’s water temperature will rise by up to three degrees Celsius in the long term by the end of the century - reaching seasonal peak increases of up to five degrees Celsius. Because warmer water holds less oxygen, stricter legal limits apply to the discharge of cooling water. For power plants as well as the steel and chemical industries, this can mean costly output curtailments or complete shutdowns in severe cases.

How can the resilience of the Rhine region be strengthened?

To address these challenges, HRC experts recommend technical and organisational adaptation measures that go well beyond standard solutions:

• Logistics sovereignty:
  In addition to adapting fleets to low-water vessels, inland logistical nodes – so-called hinterland hubs – are becoming a strategic focus for transshipment. Companies should proactively secure transport rights and integrate specific gauge-level clauses into freight contracts. Digital six-week forecasts should be integrated directly into production and dispatch systems, complemented by building larger safety stocks for critical raw materials.

• Operational and technical resilience:
  On the production side, innovative water technologies will be decisive. This includes the adoption of closed-loop cooling systems and the recovery and treatment of water, for example using membrane filtration technologies. Another key lever is adaptive load management: maintenance windows should be deliberately scheduled during forecast heat periods. At the same time, optimised maintenance – from leak detection to equipment calibration – ensures maximum resource efficiency.

• Governance and cooperation:
  To avoid conflicts over water use between industry, agriculture, and drinking water supply, HDI Global experts recommend establishing cross-sector dialogues and clear prioritisation rules for water allocation during extreme periods.

“We bring advanced climate risk analytics directly into our clients’ operational practice. Our goal is to use data-driven resilience planning to sustainably safeguard the competitiveness of major industrial corridors – such as the Rhine – even as climatic conditions continue to intensify.” Lars Regner, HDI Global Head of Risk Consulting Germany

Status as of August 2026