WMO highlights ACTRIS in its latest Air Quality and Climate Bulletin
Published: 25, September, 2025

The 5th Bulletin of the World Meteorological Organization (WMO), published on September 5, 2025, emphasizes the importance of long-term research infrastructures for tracking atmospheric composition and climate.
Pages 8 and 9 of the Bulletin specifically draw attention to the work of ACTRIS in the calibration/validation of the EarthCARE satellite, and to INDAAF (International Network to Study Deposition and Atmospheric Chemistry in Africa), a component of ACTRIS-FR.