Flooding has emerged as one of the most pressing environmental and urban development challenges confronting Ghana today. In major urban centres such as Accra, Kumasi, Takoradi, Tema, Kasoa, and several rapidly expanding municipalities, floods continue to claim lives and destroy homes and businesses. The floods also damage public infrastructure and impose high economic costs on both the government and citizens.
Although climate change and increasingly unpredictable rainfall patterns have intensified flood risks, experts argue that a substantial portion of Ghana’s flooding problem is man-made. Central to this concern are persistent violations of planning regulations, weak development control systems, and the widespread encroachment on wetlands, floodplains, waterways, and natural drainage channels. As flood disasters become more frequent, questions are increasingly being asked about the effectiveness of planning authorities, local assemblies, regulatory agencies, developers, and landowners in protecting critical environmental assets that serve as natural flood defences.
Wetlands Wetlands are among the most valuable natural ecosystems in the world and play a crucial role in flood management. These include marshes, swamps, lagoons, floodplains, estuaries, and low-lying waterlogged areas that naturally absorb, store, and gradually release excess water during periods of heavy rainfall. Environmental experts describe wetlands as natural sponges because of their ability to retain large volumes of stormwater that would otherwise inundate nearby communities.
According to the Ramsar Convention on Wetlands, wetlands provide numerous ecological and environmental benefits, including: Flood attenuation and stormwater storage, groundwater recharge and replenishment, natural filtration and purification of water and protection of biodiversity and wildlife habitats. Climate regulation Ghana is a signatory to the Ramsar Convention and has designated several wetlands as internationally protected sites. These include the Sakumo Ramsar Site, Densu Delta, Muni-Pomadze, Keta Lagoon Complex, and Songor Lagoon wetlands.
However, despite their ecological significance, many of these wetlands continue to face increasing pressure from urban development, land reclamation activities, and illegal construction. Environmental scientists warn that when wetlands are destroyed, filled with sand,…
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