green air
n.β Β«Itβs a surreal view of the world, flying with night-vision goggles, and some pilots and crewmen refer to it as taking off into βthe green air.β In fact, Cantu and his fellow B Company, βHill Climbersβ see more green air than they do daylight.Β» ββChinook pilots, crewmen spend their nights flying in βthe green airβ” by Monte Morin Stars and Stripes Nov. 25, 2006. (source: Double-Tongued Dictionary)