Zavaritskii Identified as 1831 Eruption's Climate Culprit

Researchers at the University of St Andrews have unearthed Zavaritskii volcano in the Kuril Islands as the source of the notorious 1831 Plinian eruption. By matching ash from Greenland's ice cores, they confirmed a volcanic bash that cooled the Northern Hemisphere by 1°C, triggering crop failures and widespread hardship. Amid Kuril tensions between Russia and Japan, this discovery highlights the quirky yet critical need to monitor remote volcanoes—lest history repeats with a frosty twist.