Prof. Dr. Volker Grewe is part of the group ANCE and has long-term experience in global modelling of climate chemistry interactions. He was involved in numerous EU projects on atmospheric impact of aviation emissions, e.g. TRADEOFF, SCENIC, HISAC, REACT4C, and ATM4E and contributed to the IPCC-Special Report “Aviation and the global atmosphere -1999”. He has been vice-chair of ECATS IASBL for sustainable aviation from 2015 to 2019.