Yeah, this reads very much as the same kind of moral panic we recently endured over plastic straws. Air travel does emit a ton of carbon per person, but on the whole we're better off putting effort into making renewables cheaper and greening up the agriculture industry. Not that we shouldn't put pressure on the airlines to put R&D into lowering emissions but pretending this is something people can fix by "flying a little less" is silly at best, and smacks more of religion than of reasoned responses to climate change.