Scientists identify Zavaritskii volcano as source of 1831 eruption that caused global cooling

Researchers from the University of St Andrews have identified the Zavaritskii volcano as the source of a significant eruption in 1831. This event caused global cooling of about 1°C, leading to famines and crop failures worldwide. The team used ice core records to match ash samples from the volcano with those found in polar ice. This breakthrough confirms the eruption occurred in spring or summer of 1831, resolving a long-standing debate among scientists. The study emphasizes the need for further research on the Kuril Islands, which are home to many volcanoes. The findings may help improve understanding of volcanic activity and its potential global impacts.