Qantas Green frequent flyer tier

[sudoer]

I suspect someone (individual, greenie org, competitor) may have initiated legal action to question the veracity of the offset claims made based on one size fits all. The carbon emissions of any flight are affected by load and aircraft type not just route

While I agree that each flight will have different CO2 emissions based on load and exact route flown, the CO2 calculation for all airlines is done by IATA rather than the airline itself. From what I understand aircraft type is factored into IATA's equation although a last minute swap would render that irrelevant.