We find robust empirical evidence that firms in locations with higher exposure to climate change pay significantly higher spreads on their bank loans. To alleviate the concerns related to using firms' headquarters in determining climate risk exposure, we exploit the economic link between a firm and its customers and find that the exposure of a firm's customers to climate risk also adversely affects that firm's cost of borrowing. In the cross-section, we find that the long-term loans of poorly rated firms drive the effect. Overall, our evidence suggests that lenders increasingly view climate change as a relevant risk factor.

Using a news-based index of geopolitical risk (GPR) and over 62 years of data, we find that GPR has a long-lasting negative impact on leverage. Our result is robust to different model specifications, different proxies for leverage, a battery of robustness tests, and survives after addressing endogeneity concerns. Further, we provide evidence that the effect is channeled through declining shifts in both the demand and supply of credit. Cross-sectional tests indicate that the effect is stronger for firms with higher existing leverage, those with more irreversible investment, and those whose stock returns are more sensitive to GPR. Overall, our analysis indicates that GPR is more important than other macro-level determinants of capital structure such as inflation, GDP growth, interest rate variables and other widely used measures of uncertainty.