Summary
This international review examines green infrastructure as a solution to urban flooding under global change, moving beyond legacy hard engineering approaches. The authors assess GI effectiveness in restoring hydrological responses closer to pre-urbanised conditions and evaluate how GI can be optimised synergistically with grey infrastructure to deliver environmental and social co-benefits. The review identifies critical priorities and barriers to integrating GI into existing stormwater management frameworks for futureproof urban flood risk management.
Regional applicability
The international perspective offers transferable insights for United Kingdom urban flood management policy and practice, particularly relevant given the UK's increasing focus on sustainable drainage systems (SuDS) and nature-based solutions in water management strategies. However, effectiveness will depend on local rainfall intensity, urban morphology, and existing infrastructure legacy specific to individual UK cities and regions.
Key measures
GI effectiveness in flood attenuation; hydrological response restoration; spatial scale dependency; co-benefits to environment and society; flood resilience outcomes
Outcomes reported
The review examines the effectiveness of green infrastructure (GI) solutions in urban flood mitigation and their ability to deliver multiple co-benefits alongside grey infrastructure. It identifies priorities and challenges for integrating GI into existing stormwater management frameworks to manage flood risk sustainably.
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