R122a GWP (R-122a): global warming potential (AR5, AR6)

R122a (also written R-122a, 122a, or HCFC-122a) has a 100-year global warming potential (GWP) of 258 under AR5 and 245 under AR6.

A GWP is counted in kilograms of CO₂ equivalent (kg CO₂e) per kilogram of gas released.

GWP by IPCC report and horizon

One row per figure. When publishers print different figures under one report, each figure gets its own row.

R122a: global warming potential by report and horizon, in kg CO₂e per kg
Report	Horizon	GWP	Printed by
AR5	100 years	258	ADEME
AR6	20 years	879	IPCC
AR6	100 years	245	ADEME, IPCC
AR6	500 years	69.9	IPCC

Every open record of R122a this page reads, with the figures it prints.

Publisher	Record	Region	Figures
ADEME	HCFC-122a	World	AR6 100 years: 245
ADEME	R122a	World	AR5 100 years: 258
IPCC	HCFC-122a - CHClFCCl2F	World	AR6 20 years: 879 · AR6 100 years: 245 · AR6 500 years: 69.9

Source: the open records of the open-climate.ai catalogue, version 1677.