Lahars occur when loose volcanic material washes down after prolonged periods of drynessOriginally published on Global VoicesMount Cameroon view from Buea, Cameroon. Image from Wikimedia Commons by Yona Tientcheu. CC BY-SA 4.0 Clara Efande, a resident of Buea’s Bonduma neighborhood, arrived at her Church on Thursday for her weekly fellowship meeting, but quickly changed her plans after seeing a pool of black water surrounding the building. There…