> That said, of all industries, it feels like the practical difficulties of reducing that footprint are enormously more difficult than other industries. Only i

> That said, of all industries, it feels like the practical difficulties of reducing that footprint are enormously more difficult than other industries. Only if we assume that we need to maintain or increase the level of air travel. The number of air travel passengers in 2019 (before the pandemic) was around 3.5X as many as it was in the early 1990s. That wasn't that long ago, and people managed just fine with fewer vacations abroad etc. It's easy to look at what we do today and take for granted that it's whats normal and no change is possible, but we consume the resources of 1.8 earths, so clearly we're living above our means. And since millions of people are currently on their way out of poverty and towards the same lifestyle as we as westerners are enjoying, this overconsumption of the planet's resources will get worse if nothing changes. https://www.icao.int/Newsroom/Pages/2021-global-air-passenger-totals-show-improvement.aspx https://www.icao.int/Newsroom/Pages/2021-global-air-passenge...