Monthly methane sulfonic acid flux (IMAGE) Hokkaido University Caption Monthly methane sulfonic acid flux from 1960–1971 (light gray bars), 1972–2001 (dark gray bars), and 2002–2014 (black bars), respectively (Yutaka Kurosaki, Sumito Matoba, et al. Communications Earth & Environment. December 26, 2022). Credit Yutaka Kurosaki, Sumito Matoba, et al. Communications Earth & Environment. December 26, 2022 Usage Restrictions Credit must be given to the creator. License CC BY 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.