There is a growing bulk of studies on global climate changes and conflicts. It has been argued that climate change may bea triggering factor to conflicts and wars, especially in societies with poor governance. This study explores the climate-securitynexus in Africa. It is argued that the global climate change provides profound state and human security challenges to Africangovernments and people. Scarcity of vital resources in food, water, sanitation and health has challenged political and economicstructures, infrastructure and integration. This has also been due to poorly governed states with authoritarianism, corruption,ethnic divisions and fragile, dysfunctional institutions. The war in Darfur is a tragic, but illustrative example of the climatechange-security nexus of our time.