4% for only 10-15% of the world population, while most other industries distribute more uniformly. I don't subscribe to the alarmism but the hubris of frequent flyers telling everyone else to cut down emissions triggers me. Most idiotic are the people virtue signalling by not eating meat to offset their air travel as if one category cancels the other while the co2 emissions of one transatlantic round-trip flight are about a lifetime of meat consumption (pork and chicken)...
Hypocrites. Like a friend of mine who drives an electric car and takes 30+ flights per year including multiple trips across the Atlantic, entirely for pleasure, since selling his business and entering partial retirement. He's a bit of a prig about everything, politics included, so he's a constant source of judgment about people's politics and emissions. I don't doubt he buys carbon offsets for every flight he takes and blames lack of regulation of the carbon offset market for any harm he's causing.
I think it's closer to a year than a lifetime but the point still stands. Vegetarians who fly are not prioritizing GHG emissions (they usually have other well-weighted decision factors like the agricultural/nitrogen/pesticide pollution and cruelty).
