IATA warns “urgent” data needed to understand contrail climate impact

The International Air Transport Association (IATA) has called for “urgent action” from the aviation industry to provide more data on the climate impact of aviation contrails to develop “effective mitigation measures”. Its report called for greater collaboration between research and technological development, as well as recommending policy frameworks to assess the impact of aviation contrails. The report highlights the complexity of contrail science and the “gaps in the understanding” of how they form. It believes a greater provision of atmospheric data will facilitate a greater understanding on the non-CO2 emissions from contrails. “The industry and its stakeholders are working to