Fig. 3: Anthropogenic climate change impacts on the frequency of CDHWs across different income groups.

Here, the probability ratio (PR) is used to quantify the impacts of anthropogenetic forcing on the frequency of CDHWs during the period of 1981–2020 (see Methods). a Each probability density function represents the PR distribution for an income group and the percentage indicates the fraction of regions in the HIC and LIC groups that have experienced more than double in the anthropogenic impacts on CDHWs. b Global interrelationship between the share of population that is poor ($1.90 per day) and anthropogenic climate change impacts on the frequency of CDHWs (i.e., the PR). The box extents and whiskers in b are the same as those in Fig. 1. The red dashed line represents the fitted linear regression between poverty rates (x-axis) and the PR (y-axis). The Pearson correlation coefficient and its p-value are shown.