[newfonewhodis]

There are two problems with your assessment:

1. This is an underestimation of the actual flight durations:

> However, there are few enough volunteers outside the United States and Europe that coverage may be limited, leading to underestimation of flight time and distance.

2. Much bigger issue is that the comparison used is apples-to-orange. Comparing the gross footprint of an average American to just the private jet use of another person is not a fair comparison. From https://www.npr.org/2022/11/09/1135446721/billionaires-carbo...

> Some of the world's richest billionaires each emit about 3 million metric tons of carbon dioxide on average per year, more than 1 million times the amount emitted by 90% of people, according to a new study.

If you take into account all modes of travel and entertainment by the richest (yatchs, planes, fancy cars, giant mansions etc etc) and how investment props up fossil fuels, 15k quickly grows to be orders of magnitude more.

[Aunche]

Your link compares is talking about emissions of their investments, which doesn't make sense to include as part of their CO2 footprint. If the ownership of these companies somehow were magically distributed in a "better" way, the incentives to pollute would roughly remain the same.