Six years ago Katz-Rosene calculated the Aviation industry caused 4% of ckunate change. I dont suppose the link below will work, if it even apppears.

Aviation may be one area in which doing what needs to be done would involve sacrivice for ordinary consumers. They would have to cut down on brief holidays abroad. Apparently raucus stag-dos account for a huge number of flights to he continent

https://www.straight.com/news/1248951/airplanes-are-massive-source-carbon-emissions-and-industry-has-no-real-plan-reduce#