Experience and self-interest: Diverging responses to global warming

Abstract

People are increasingly feeling global warming's effects through extreme heat and natural disasters. How do these climate shocks affect political attitudes? We argue that the effect of climate-related experiences depends significantly on self-interest. People in more vulnerable locations are more likely to respond to climate shocks with greater concern and more support for mitigation policy. We test this hypothesis with a macroeconomic model of climate change, geospatial data on climate shocks, and survey data of 148,712 people across 137 countries, and over time with the same 9,500 individuals in the United States. The results show that climate shocks heighten risk perceptions and lead to greater support for mitigation policies only among people in climate-vulnerable places. This responsiveness to experience is most evident in democratic countries and among people whose livelihoods depend on the weather. Integrating political economy and behavioral theories helps to explain how political attitudes change.