[pengaru]

> There are over 100,000 flights daily. They account for about 2.5% of CO2 emissions yearly.

The generally accepted emissions weighting factor for aviation co2 emissions is ~2.6. So it's more like 6.5%, and growing fast.

[tda]

Just to clarify: in the cases of high-altitude airliners which frequently fly near or in the stratosphere, non-CO2 altitude-sensitive effects may increase the total impact on anthropogenic (human-made) climate change significantly

https://en.wikipedia.org/wiki/Environmental_impact_of_aviati...