5. Categorization of all airlines into seven efficiency classes, in analogy to the color codes of
EU for refrigerators, houses, etc. No single
airline has reached class A or B.
6. This procedure allows the following comparisons:
• An airline with only a few city pairs can be
compared to one servicing hundreds of city
pairs.
• An airline with only short distance flights
can be compared with one offering only
long-distance flights.
• A low cost carrier can be compared with a
net carrier.
• An airline offering only one city pair without competitors can be ranked.
The importance of the influencing factors age
of an aircraft, number of seats, and percentage
of seats occupied leads to an astonishing result:
Charter airlines and low cost carriers have a
lower climate impact than well-known carriers
and no airline has reached category A or
B. However, there needs to be a discussion on
that: How should the stimulation of further air
traffic by and the subsidies often given to low
cost carriers be handled? The atmosfair group
has decided not to include the low cost carriers
in its first AAI although all the data are available. For the ranking of the airlines, excluding
low cost carriers, see Fig. 7. There are only
three factors nearly totally determining the
higher ranking: high numbers of seats in a
certain aircraft type, percentage of seats occupied, and age of the aircraft. Hence, an airline
flying tourists to a destination with narrow
Aviation and Atmosphere, Fig. 7 A sample from the AAI for medium distance flights. For all airlines, please see
https://www.atmosfair.de/en/air-travel-climate/airline-index/
342
Aviation and Atmosphere
EU for refrigerators, houses, etc. No single
airline has reached class A or B.
6. This procedure allows the following comparisons:
• An airline with only a few city pairs can be
compared to one servicing hundreds of city
pairs.
• An airline with only short distance flights
can be compared with one offering only
long-distance flights.
• A low cost carrier can be compared with a
net carrier.
• An airline offering only one city pair without competitors can be ranked.
The importance of the influencing factors age
of an aircraft, number of seats, and percentage
of seats occupied leads to an astonishing result:
Charter airlines and low cost carriers have a
lower climate impact than well-known carriers
and no airline has reached category A or
B. However, there needs to be a discussion on
that: How should the stimulation of further air
traffic by and the subsidies often given to low
cost carriers be handled? The atmosfair group
has decided not to include the low cost carriers
in its first AAI although all the data are available. For the ranking of the airlines, excluding
low cost carriers, see Fig. 7. There are only
three factors nearly totally determining the
higher ranking: high numbers of seats in a
certain aircraft type, percentage of seats occupied, and age of the aircraft. Hence, an airline
flying tourists to a destination with narrow
Aviation and Atmosphere, Fig. 7 A sample from the AAI for medium distance flights. For all airlines, please see
https://www.atmosfair.de/en/air-travel-climate/airline-index/
342
Aviation and Atmosphere