R121 GWP (R-121): global warming potential (AR6)

R121 (also written R-121 or HCFC-121) has a 100-year global warming potential (GWP) of 58.3 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.

R121: global warming potential by report and horizon, in kg CO₂e per kg
Report	Horizon	GWP	Printed by
AR6	20 years	210	IPCC
AR6	100 years	58.3	ADEME, IPCC
AR6	500 years	16.6	IPCC

Every open record of R121 this page reads, with the figures it prints.

Publisher	Record	Region	Figures	Factor page
ADEME	HCFC-121	World	AR6 100 years: 58.3
IPCC	HCFC-121 - CHCl2CCl2F	World	AR6 20 years: 210 · AR6 100 years: 58.3 · AR6 500 years: 16.6

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