Table F.1a.

Emission metrics and corresponding CO₂-equivalent emissions for the ERF components of 2018 aviation emissions and cloudiness using CO₂ IRF without C-cycle feedbacks from Gasser et al., 2017, and climate IRF from Boucher and Reddy (2008).

Metrics
ERF term	GWP20	GWP50	GWP100	GTP20	GTP50	GTP100
CO2	1	1	1	1	1	1
Contrail cirrus (Tg CO2 basis)	2.39	1.15	0.68	0.70	0.11	0.10
Contrail cirrus (km basis)	40	19	11	12	1.9	1.6
Net NOx	637	216	122	−231	−75	14
Aerosol-radiation
Soot emissions	4409	2125	1252	1295	210	177
SO2 emissions	−856	−412	−243	−251	−41	−34
Water vapor emissions	0.22	0.11	0.06	0.07	0.01	0.009