Contrail Research: Which Airlines Are Involved & What Are They Doing?

Commercial aircraft fly at high altitudes to achieve fuel efficiency and minimize environmental impact. The air density decreases with altitude, which benefits the aircraft's performance. Flying through thinner air creates less drag on the aircraft, and as a result, the aircraft requires less fuel to maintain speed. Moreover, flying above the clouds also means the aircraft is less susceptible to turbulence and other environmental factors while achieving a comfortable ride for passengers.