Why the Rhine drought is bad news for Germany's recovery

The Rhine River, crucial for Germany's industrial supply chain, is facing a severe drought that has left water levels at dangerously low levels. At Kaub, near Mainz and Koblenz, the water level fell to just 16 centimeters, well below the 40 centimeters required for standard commercial vessels. This has led carriers to drastically reduce cargo loads along the river, in some cases to just one-fifth of normal capacity.

The issue is not isolated to the Middle Rhine; areas around Cologne, Düsseldorf, Duisburg-Ruhrort, and Emmerich are also experiencing historic lows. Jens Schwanen, head of the inland shipping association BDB, warned that the Rhine may become impassable at Kaub before the end of the week, effectively dividing the river for commercial traffic.

This drought coincides with Germany's economic challenges, including weak growth, high energy costs, and fading industrial competitiveness. Germany relies on its rivers and waterways to transport some 5% of its goods, with the Rhine alone carrying 173 million tons of goods in 2024. Experts predict a 1% decline in industrial production for every 30 days of low water on the Rhine, which could result in a 0.4% drop in Germany's GDP, effectively wiping out the year's expected growth.

The Rhine's navigability may be compromised, forcing cargo to switch to trucks and rail, causing severe congestion and higher costs. Germany is also exploring measures to alleviate supply chain disruptions, including easing restrictions on truck movements and improving coordination between road and rail transport. Climate change is believed to be exacerbating the frequency and severity of such events, with the Rhine's natural buffer weakening as glaciers retreat and snow cover declines.