You make an excellent point, but there is something about flights that's often overlooked. Night flights are actually significantly worse than day flights, bec

You make an excellent point, but there is something about flights that's often overlooked. Night flights are actually significantly worse than day flights, because the emissions don't reflect heat from the sun but trap heat from the Earth. https://www.theguardian.com/science/2006/jun/15/theairlineindustry.ethicalliving https://www.theguardian.com/science/2006/jun/15/theairlinein... That said, this isn't a large enough effect to discredit your point.