Map of the Phlegraean volcanic fields (IMAGE) Geological Society of America Caption Map of the Phlegraean volcanic fields (left), with details of carbon dioxide emissions from Solfatara crater (right). Source: G. Buono et al., 2023. Credit Source: G. Buono et al., 2023. Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. License CC BY-NC Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.