The article discusses the connection between two mass extinctions in the Permian period and large volcanic eruptions. These extinctions wiped out over 90% of marine species and disrupted global ecosystems. The researchers suggest that the Siberian and Emeishan volcanic provinces may have caused these extinctions by releasing harmful gases and ash into the atmosphere. This study reviews evidence of volatile gases released during these volcanic events and highlights the impact on global climate. The findings point to a possible link between large volcanic eruptions and mass extinctions in the Permian period.