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EU Builds 'Sponge Cities' for Water Woes
17 Oct
Summary
- Europe implements 'Sponge Facility' for nature-based urban water management.
- Sponge cities absorb, retain, and reuse rainwater, reducing floods and droughts.
- China pioneered sponge city concepts two decades ago, with cities like Wuhan adopting it.
The European Union is launching a 'Sponge Facility' to champion nature-based projects designed to enhance urban resilience against droughts and floods.
This initiative draws inspiration from the 'sponge city' concept, pioneered in China two decades ago. It involves integrating green spaces, permeable surfaces, and water retention systems into urban landscapes. The aim is to absorb, store, and reuse rainwater, thereby lessening strain on drainage systems and conserving water for dry periods.
Cities across Europe have initiated similar projects. Malmö, Sweden, retrofitted the Augustenborg neighborhood between 1998 and 2002 with green roofs and wetlands, experiencing reduced flood damage. Rotterdam, Netherlands, features the Benthemplein water square, which serves as recreational space and water storage.
Copenhagen, Denmark, also employs rain gardens and underground storage. The European Commission supports these efforts through its 2025 Water Resilience Strategy and now the new 'Sponge Facility'.
While powerful, sponge city measures are not a complete solution. Extreme rainfall can saturate systems, necessitating complementary strategies like conventional drainage, larger reservoirs, and designated floodwater routes. Effective implementation requires collaboration among city authorities, water utilities, developers, and landowners.
