Europe's Rivers Are Carrying Less Water Than at Any Time in Around 30 Years

The low water levels are increasing pressure on several sensitive areas. Energy production in hydroelectric plants, the cooling of power stations, the supply of agricultural areas, and drinking water extraction are increasingly affected in several EU member states, according to the available reports. In this context, the EU points to risks for energy security and to potential bottlenecks in the supply of drinking water and irrigation water.

Impacts on Energy and Supply

Water temperatures in the rivers themselves and in adjacent marine zones are higher too. They exert an influence on coastal heat events, as they restrict nighttime cooling and increase humidity, scientists say. This further intensifies heat stress in the affected regions, it was stated.

Accompanying the drought, this year's wildfire season has been particularly severe in parts of Southern Europe. In Spain and France, roughly twice as much area was affected by forest fires as in previous years, according to the available reports. This also increases the burden on soils and water resources, because dried-out soils can absorb and retain less precipitation.

Forest Fires as an Additional Stress Factor

Weather services expect the low-water situation not to ease in the short term. As long as the weather pattern does not fundamentally change, water levels will remain at an unusually low level for the season. Only heavy precipitation over several days could noticeably alleviate the situation.

In the capitals of the affected countries, initial restrictions on shipping and water abstraction from rivers have been reported. Authorities have also called on farmers and municipalities to use water more sparingly. Some cities are also examining the increased use of mobile treatment plants to ensure drinking water supplies even as levels continue to drop.

Political Reactions and Next Steps

Scientists emphasize that the current values are to be classified as exceptional in long-term comparative series. A comparable combination of high temperatures, low precipitation, and extremely low discharge levels has not been observed in this magnitude over the past three decades.

The EU announced that it will continue to monitor developments closely in the coming weeks. Discussions are under way on, among other things, stronger cross-country coordination in water management and possible immediate measures to relieve particularly affected regions.

Observers see the current situation as further evidence that the consequences of rising temperatures in Europe are already becoming visible in everyday infrastructure. Discussions about investments in a more crisis-resilient water and energy infrastructure are likely to gain momentum in light of these figures.