R403B GWP: global warming potential (AR4, AR5)

R403B has a 100-year global warming potential (GWP) of 1,014 under AR4, 3,471 to 4,456.6 under AR5, and 4,775 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.

R403B: global warming potential by report and horizon, in kg CO₂e per kg
Report	Horizon	GWP	Printed by
AR4	100 years	1,014	UNEP
AR5	100 years	3,471	DESNZ
AR5	100 years	4,456.6	MfE
WMO 2022	20 years	5,840	UNEP
WMO 2022	100 years	4,775	UNEP

R403B is a blend. Shares by mass as MfE states them.

Every open record of R403B this page reads, with the figures it prints.

Publisher	Record	Region	Figures
DESNZ	Blends - R403B	United Kingdom	AR5 100 years: 3,471
MfE	Refrigerant Use - Refrigerant blends: Zeotropes - 403B - R-290/22/218 (5.0/56.0/39.0)	New Zealand	AR5 100 years: 4,456.6
UNEP	R-403B - R-290/22/218 (5.0/56.0/39.0)	World	AR4 100 years: 1,014 · WMO 2022 20 years: 5,840 · WMO 2022 100 years: 4,775

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