R401B GWP: global warming potential (AR4, AR5)

R401B has a 100-year global warming potential (GWP) of 1,288 under AR4, 15 under AR5, and 1,349 under WMO 2022.

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.

R401B: global warming potential by report and horizon, in kg CO₂e per kg
Report	Horizon	GWP	Printed by
AR4	100 years	1,288	UNEP
AR5	100 years	15	DESNZ
WMO 2022	20 years	4,059	UNEP
WMO 2022	100 years	1,349	UNEP

R401B is a blend. Shares by mass as UNEP states them.

Every open record of R401B this page reads, with the figures it prints.

Publisher	Record	Region	Figures	Factor page
DESNZ	Blends - R401B	United Kingdom	AR5 100 years: 15
UNEP	R-401B - R-22/152a/124 (61.0/11.0/28.0)	World	AR4 100 years: 1,288 · WMO 2022 20 years: 4,059 · WMO 2022 100 years: 1,349

Source: the open records of the open-climate.ai catalogue, version 1590.