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Understanding of the effects of formal education on HIV/AIDS infection in South Saharan Africa (SSA) has been a complex task because consecutive waves of research offer different, seemingly contradictory results and explanations of what exactly are the schooling effects on HIV/AIDS and the causal mechanisms driving those effects. This chapter concentrates on the narrative and implications of the key substantive findings from a multidisciplinary scientific team that was formed to explore the precise nature of the relationship between population education and the HIV/AIDS pandemic in SSA and to determine the main causal mechanisms behind the association. As members of this team, this chapter reviews and synthesizes our technical demographic, epidemiological, and health research. This, and other relevant research, suggests that, like in other cases of education and health risk, because of a historical change in the public health and information environment during the pandemic there was a shift in which outcomes of education dominated individual's sexual and disease prevention behavior. The SSA HIV/AIDS case is thoroughly examined, and then used to bridge to a general discussion of the effects of educational development on population health.

Purpose – Flooding has become a recurring phenomenal in most cities in Nigeria. The 26 August 2011 flooding disaster which occurred in Ibadan is only an indication of magnitude of flooding problem in Nigerian cities. This chapter examines the impacts, vulnerability factors and disaster risk management framework in Ibadan metropolis.

Methodology/Approach – The survey design was used for the study and covers eleven local government areas (LGAs) affected by the flood. The study utilized both primary and secondary data. The primary data were obtained by physical observation and in-depth interview of affected households. In-depth interview was also carried out with key officials of State Ministry of Environment and Housing. The study also relies on the data from the Oyo State Government Task Force on Flood Prevention and Management report.

Findings – The chapter shows that the 26 August 2011 flood disaster in Ibadan metropolis caused monumental destructions in the city. The continuous construction on flood plains, indiscriminate dumping of refuse, excessive rainfall and deforestation were identified as the main vulnerability factors. The chapter shows that there is no adequate framework for disaster risk management in the city.

Research limitations – About 250 affected households in 11 LGAs were interviewed for the study due to time and budget constraints. This figure is considered meagre considering the number of affected households by the flood disaster. However, the random selection of affected households and key government officials helped to address this limitation.

Originality/value of chapter – The simultaneous identification of impacts, vulnerability factors and disaster risk management framework in the city provides an opportunity for the development of a holistic and proactive disaster risk management strategy in Ibadan metropolis.