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Contact: Morgan Kelly
Princeton University

Conflict and Climate

Caption: The researchers analyzed 60 studies from a number of disciplines that have explored the connection between weather and violence in various parts of the world, and throughout human history. A sampling of existing results (graphed above) show a correlation between temperature on violent personal crime and rape in the United States (A, B); drought and global civil conflict (H); temperature and the ouster of leaders worldwide (J); deviation from normal rainfall and large-scale violence in Africa (K); and global civil conflict and the intensity of El Niño (L). The darker areas indicate a stronger connection between climate and violence. Panel titles indicate the type of violence studied, the location, the unit of analysis and sample size, and the study citation.

Credit: Image by Science/AAAS

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