Estimate the CO2 emissions of a flight based on the distance flown and your seat class.
Basis: published flight emissions calculators use different per-passenger-km factors depending on flight length, aircraft, and load factor. There is no single universally agreed exact figure — non-CO2 climate effects of aviation (contrails, altitude effects) are also debated and not included here. Adjust the factor above with your own source if you have a more precise one. Not a certified carbon accounting tool.