Yes, it's often a bullshit calculation when airplanes are compared to trains or cars. Infrastructure is usually not factored in, it's about fuel efficiency of a full airplane (which is often the case) vs. full cars / trains (which is rarely the case) and the same distances are compared (although a plane usually flies a more efficient route than land based transport). To some destinations, going by train or car could even consume more energy overall, but all we are told by not the brightest of all people, is that a train is 20 times more efficient than a plane, period. Sometimes it's like even the environmentalists want to keep up their wasteful travelling habits, but greenwash them by condemning planes - while the obvious solution would be just to travel less in general. No matter by what means, unless it's by bycicle or walking. And to stop commuting so much.