Torrential rainstorms have struck Brazil’s Rio Grande do Sul, leading to catastrophic flooding, dozens of deaths, and massive displacement. In short:Rio Grande do Sul experienced its worst flooding in 80 years, with rainfalls between 20-40 inches. The storms caused a small hydroelectric dam to partially collapse, sending a large wave through the surrounding areas. Climate experts link the devastation to global heating and the El Niño weather pattern. Read more: Nowhere to go in New Bern: Climate catastrophe spurs migrants in US South.