On 27th and 28th of September a kick off meeting of the IMUMCN project took place at the University of Groningen in the Netherland. The teams from Groningen, Poznań and Beijing met each other in person to discuss the next steps of the project. Particular attention was paid to data collection for the modeling tasks and to the scheme of the emission trade experiment to be carried out in the city of Poznań and Groningen. The Poznań team was respresented by Aleksandra Lis-Plesińska and Rafał Szymanowski.