Climate change is the main reason water management has become more difficult. Warmer temperatures mean more evaporation and drier soil.
Germany’s water supply has long been considered secure, but over the past 30 years, that stability has come under growing strain. The country still has plenty of water overall, yet the pattern of supply has changed. Hotter summers, more frequent droughts, and weaker groundwater recharge in some regions have made water shortages more visible, especially in dry years. The result is a system that works but is becoming less predictable.
Agriculture Feels the Pressure
The biggest change has been felt in agriculture. Three decades ago, irrigation was less central in many parts of Germany. Today, farmers in drier regions, especially in the east and centre of the country, are increasingly dependent on water to protect crops during heatwaves and long dry spells. That matters because agriculture needs not just total water, but water at exactly the right time in the growing season. When rain fails to arrive, crop yields can fall quickly.
Drinking Water Remains Reliable
For households, Germany’s drinking water supply remains strong. Most people still have reliable access to safe tap water for drinking, washing, and hygiene. But the system is not immune to climate pressure. Germany relies heavily on groundwater, and repeated dry periods have made that source more vulnerable in some areas. Water companies are therefore paying more attention to conservation, recharge areas, and long-term planning than they did in the past.
Where the Water Comes From
Germany’s water supply comes mainly from groundwater, supported by rivers, lakes, springs, and bank filtration systems. That basic mix has not changed much over the last 30 years. What has changed is the reliability of replenishment. In wetter periods, groundwater can recover. In hotter, drier years, recharge slows, creating strain. Surface water is also under pressure during droughts, when river levels fall, and ecosystems come under stress.
What Is Driving the Change
Climate change is the main reason water management has become more difficult. Warmer temperatures mean more evaporation and drier soils. At the same time, urban growth and sealed surfaces make it harder for rainwater to soak back into the ground. Agriculture, cities, and ecosystems are now competing more directly for the same water, especially in summer. What was once a mostly technical issue has become a question of resilience.
Germany’s Response
Germany is already responding. Through its National Water Strategy, the government is trying to hold more water in landscapes, protect groundwater, reduce pollution, and make water use more efficient. The focus is increasingly on adaptation: storing more water, restoring wetlands, and improving planning for dry periods. In cities, green spaces and rainwater retention are being used to slow runoff and support groundwater recharge. In farming, more efficient irrigation and soil protection are becoming more important.
Climate Policy and Water Security
The link between climate policy and water supply is now hard to ignore. Germany is already taking action, but stronger climate action would help reduce future drought stress, reduce evaporation losses, and improve groundwater recharge. That would not solve every local shortage, but it would make the country’s water system more resilient. In Germany, climate policy is now part of water policy.
This Post was submitted by Climate Scorecard Germany Country Manager Monique de Ritter.
Learn More Resources
- Federal Ministry for the Environment, Nature Conservation, Nuclear Safety and Consumer Protection. National Water Strategy.
https://www.bundesumweltministerium.de/en/national-water-strategy - Nature Communications. Deep learning shows declining groundwater levels in Germany until 2100 due to climate change.
https://www.nature.com/articles/s41467-022-28770-2 - Thünen Institute. Water availability in agriculture.
https://www.thuenen.de/en/thuenen-topics/water/water-availability-in-agriculture - Helmholtz Climate Initiative. How climate change is changing our relationship with water.
https://helmholtz-klima.de/en/climate-change-water - Clean Energy Wire. Water shortages increasingly threaten Germany’s economy and ecosystems.
https://www.cleanenergywire.org/news/water-shortages-increasingly-threaten-germanys-economy-and-ecosystems-report