Last year, Twitter account @CelebrityJets drew attention to one particular fact about private jet use that the extraordinarily wealthy would prefer we didn’t know: many of them treat their pricey aerial toys like a regular person might treat a taxi or a bus, hopping on board for short trips that can last as little as ten or fifteen minutes. Besides super-yachts, it’s difficult to think of anything more perfectly symbolic of decadence or excess than personal private jets.

Among other things, the carbon footprint from even a brief trip is enormous. A single, seventeen-minute jaunt by billionaire Kylie Jenner, for example, produces emissions equivalent to one quarter of what the average person produces in a whole year, all to travel a distance Jenner could have driven in only forty minutes.

Celebrity flights deservedly drew the majority of the public’s ire, but many such trips by less well-known wealthy people have received less attention. And while the individual flights themselves might be potent symbols of the problem, they don’t adequately convey its scale.