Volcanogenic Chlorofluorocarbons and the Recent CFC Anomalies

Klobas, J. Eric and David M. Wilmouth. 2019. Volcanogenic chlorofluorocarbons and the recent CFC anomalies. Harvard University, Cambridge, MA. https://dash.harvard.edu/handle/1/39913598.

This document is a white paper prepared at the request of the Scientific Assessment Panel (SAP) of the Montreal Protocol. We briefly review the literature regarding the volcanogenic production of chlorofluorocarbons within the context of the East Asian CFC-11 emissions anomaly first described in 2018. We conclude that volcanic emissions of CFC-11 cannot account for the observed emissions anomaly.