Water Resilience – Preparing Municipalities for Drought and Heavy Rainfall

Water is becoming a key challenge for an growing number  of local authorities worldwide. On the one hand, they are increasingly exposed to heatwaves and drought. But on the other hand, heavy rain and high water levels are leading to more frequent flooding. These risks come together to not only impact public health, but jeopradize private property and public infrastructure. Global water demand could significantly exceed available supplies by 2030. Water is thus becoming a strategic resource. It is therefore critical for municipalities to strengthen their water resilience.

Examining their own challenges regarding water resilience, learning from experiences on other continents and developing the courage to implement innovative ideas – all these were the ingredients of the first in-person meeting as part of the Connective Cities Deep Dive, held from 5 to 7 May 2026 in Wuppertal. The group had already met for a virtual kick-off in March 2026. In early 2026, a total of 16 experts from the German municipalities of Dresden, Wunstorf and Wuppertal, as well as from Akkaraipattu (Sri Lanka), Homa Bay (Kenya), Hyderabad (India), Natitingou (Benin) and Niš (Serbia) have started a two-year long working together to explore and analyse innovative approaches such as sponge city concepts, blue corridors and integrated blue-green-red infrastructure, and the possibilities for their implementation. On this basis, they develop and implement locally adapted solutions to address their specific challenges.

The report describes practical examples from Wuppertal and Leipzig, outlines the planned pilot projects of the six municipalities and summarises the key takeaways from the process so far.