WIRE โ Across sub-Saharan Africa, urban flooding has evolved from a seasonal hydrological event into a persistent governance crisis. In Ghana, particularly within the Greater Accra Metropolitan Area, flooding is no longer an occasional inconvenience but a recurring urban emergency with significant human, economic, environmental, and public health consequences. Between 2015 and 2025, flooding in Greater Accra alone resulted in economic losses exceeding GHS 6.3 billion (approximately USD 510 million). These losses include an estimated GHS 1.8 billion in damage to small and medium-sized enterprises (SMEs), GHS 2.1 billion in damage to public infrastructure, and GHS 800 million in damage to residential property. Nationally, Ghana loses an estimated USD 200 million annually to natural disastersโequivalent to nearly 2 per cent of GDPโwhile more than 2 million people are affected each year.
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