Climate Change, Epidemics and Inequality

What are the links between climate change, epidemics and socioeconomic inequality? While recent epidemics have focused attention on the effects of epidemics on economic outcomes, and a separate literature in climate science and environmental health has linked global environmental change to increased incidence of epidemics of infectious disease, there's relatively little work connecting these two literatures. We explore the links between climate change, epidemics and group-based inequality by first reviewing the scientific literature modeling the effects of global warming on epidemics of infectious disease. We highlight the ways in which climate variables like temperature, precipitation and wind speeds, and adaptive human behavior like migration may more easily facilitate the spread of infectious disease. We then examine the effects of climate-induced epidemics on inequality using evidence from the African meningitis belt. The results show that epidemics can worsen outcomes for groups in already relatively economically precarious circumstances, thereby widening group-based socioeconomic inequality. We outline areas for further research, emphasizing the need for careful work that more clearly documents the links between global warming and epidemics and the potential implications for socioeconomic inequality