From: Development and implementation of an emission optimization model for passenger flight bookings
Time
CO2-sorting
Time/price-sorting
Q1 2017
1.6
30.8
Q2 2017
1.2
27.4
Q3 2017
1.1
29.4
Q42017
1.4
34.2
Jan 2018
1.5
37.7
Average
31.9