A new study finds that, with warmer air able to hold more water vapor, intensity and frequency of extreme rainfall increases exponentially with global warming. Climate models significantly underestimate this. While most land-areas are expected to increase in both the intensity and frequency of extremes, the study finds stronger increases typically occur most often across the tropics and high-latitudes, like in Southeast Asia or Northern Canada.
phys.org/news/2023-11-extreme-rainfall-exponentially-global.html