While scientists have known that the major climate event reported during this period was caused by volcanic activity, the exact identity and location of the volcano remained a mystery – until now. A new study published in the journal PNAS found the Zavaritskii volcano on the remote,

In 1831, the Earth shuddered. A massive volcano erupted with such ferocity that it dimmed the skies and cooled the planet. Crops failed, famine spread, and the Northern Hemisphere entered a climate-altered reality.