Thanks to 9/11 it's already been studied, and surely this pandemic will add to that body: https://news.psu.edu/story/361041/2015/06/18/research/jet-contrails-a

Thanks to 9/11 it's already been studied, and surely this pandemic will add to that body: https://news.psu.edu/story/361041/2015/06/18/research/jet-contrails-affect-surface-temperatures https://news.psu.edu/story/361041/2015/06/18/research/jet-co...