FARNBOROUGH, United Kingdom, July, 2026 - The chief technology officers of Boeing, Airbus, Dassault, GE Aerospace, Rolls-Royce, RTX and Safran today highlighted new research findings that are advancing scientific understanding of aviation non-CO2 effects such as contrails, nitrogen oxides, sulfur, aerosols and soot. The technology leaders shared the latest results from industry-involved flight and ground test campaigns, emphasising continued progress in efforts to better understand and reduce aviation’s non-CO2 effects.