There will be a hybrid workshop iaimed at bringing together the active and collaborative communities of RFMIP, AerChemMIP, and PDRMIP under a new initiative called CACTI (Composition Air quality Climate inTeractions Initiative: Emissions to Response). CACTI is a new activity which aims to follow on from the success of TriMIP, with the overall goal of quantifying and understanding global and regional forcing, climate and air quality responses, and Earth System feedbacks due to atmospheric composition and emission changes.    

The hybrid workshop will be held in-person at GEOMAR in Kiel, Germany, with an option to join online, from Tuesday 13 June to Thursday 15 June 2023. The workshop will consist of a mix of presentations and discussions, which we aim to record and make available with limited access. Further details about the workshop will be announced in due course, but for now, we ask that you save the dates. 

All further announcements about the workshop and CACTI activities in general will be made through a mailing list – if you are interested, please subscribe by sending an email to .

We look forward to seeing you in June. 

On behalf of the organising committee,

R. Allen, B. Collins, S. Fiedler, P. Griffiths, M. Kasoar, V. Naik, F. O’Connor, M. Schulz, C. Smith, T. Takemura, S. Turnock, D. Watson-Parris, D. Westervelt, L. Wilcox