Ota Flood‑Early‑Warning CBA/LLA
Flash floods in Ota (Ogun State) damage crops, roads and homes; no timely alerts.
How locals were engaged: CLEEN Foundation and Ota Local Council formed a Flood Response Committee — women, youth, farmers, imams, pastors — who co‑mapped risks, chose warning methods (drums + WhatsApp/SMS), and built a low‑cost rain‑gauge sensor.
Outcome: Zero casualties in 2023 (vs 7 deaths before), 42 % drop in crop loss, roads stayed open 95 % of the time; community now sits on council climate sub‑committee.
Traditional Practices in Ota
_Omi‑Iyá_ drum warnings for floods.
-Mixed‑cropping (maize + cassava), raised bunds (‘Ita‑Oko’), clay‑pot rainwater harvesting.
Still used, though pots and drums are fading; they match current flood/drought risks but need modern tech reinforcement.
Barriers: policy neglect, youth migration, external‑solution mindset, land‑tenure confusion.
Integration Example — hybrid drum‑WhatsApp alert blends tradition (drum legitimacy) with modern data (sensor SMS). Similar to Great Green Wall blending _Bauhinia rufescens_ planting with agroforestry.
Integration into LLA
document knowledge → co‑design hybrid tools → embed in state climate plans → train youth + elders → set up community climate fund.