Abstract:

Previous cross-cultural research suggests that climate hazards may have profound effects on a society’s culture. For example, in non-state societies serious food-destroying hazards (typically droughts, some floods, and pest infestations) strongly predict higher warfare frequencies and more customary beyond-household sharing. The research question addressed here is whether non-food-destroying hazards (such as storms and seismic activity) have similar or different effects on a range of cultural traits hypothesized to be adaptive responses in a worldwide sample of nonindustrial societies. For the past two years our research team has coded the type and frequency of hazards for 132 societies in the ethnographic record using eHRAF World Cultures. Preliminary results suggest that the contrast between frequent food-destroying and frequent non-food-destroying hazard profiles generally make very different predictions. For example, societies with more non-food-destroying hazards tend to have tighter cultures (stronger norms and severe punishment for norm violations), but cultural tightness is not predicted by food-destroying hazards. Food-destroying hazards in non-state societies predict more warfare, but non-food-destroying hazards predict less warfare. We present theory and causal models suggesting explanations for these divergent findings. Understanding how humans have adapted to hazards in the recent past may help us better understand the hazards faced today.

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