Working with nature and green infrastructure can improve the management of water resources and contribute to reducing risks associated with water-related disasters and climate change while restoring and protecting ecosystems.
Dar es Salaam in Tanzania is expected to double in population by 2050. This rapid growth poses significant challenges for the city, particularly relating to flood risk, urban heat, land degradation and soil erosion.
Low cost, human-made river barriers, similar to those built by beavers, can protect communities at risk of flooding. Our new research has found that such natural barriers intentionally increase water levels upstream to slow down river flow.
This nature-based solution involves creating up to 20 acres of engineered oyster reefs and up to 30 acres of salt marshes to attenuate wave action and help protect the vulnerable coastline and critical infrastructure from erosion.
United Nations Framework Convention on Climate Change