Flying regularly for work, I've noticed the airline industry markets itself as a climate villain, but the real issue might be our dependence on cheap flights. When a round-trip ticket costs less than a tank of gas, of course we fly more—and that demand drives the emissions, not the other way around. I recently calculated that my short-haul trips emit about 300 kg CO2 each, but taking the train would have taken three days off my project schedule. Should we actually be debating aviation's carbon footprint, or is it just a scapegoat for our broader transportation choices?