A cave in the interior of Paraná state in Brazil contains a "climate archive" that enabled Brazilian researchers to reconstruct the history of extreme rainfall in Brazil's South Region over the past 7,500 years. Their findings revealed that the frequency of these events in the 20th century was a...
Source: [Phys.org](https://phys.org/news/2026-07-cave-reveals-antarctica-el-nio.html)