R409A GWP: global warming potential (AR4, AR5)

R409A has a 100-year global warming potential (GWP) of 1,585 under AR4, 1,484.75 under AR5, and 1,624 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.

R409A: global warming potential by report and horizon, in kg CO₂e per kg
Report	Horizon	GWP	Printed by
AR4	100 years	1,585	UNEP
AR5	100 years	1,484.75	MfE
WMO 2022	20 years	4,691	UNEP
WMO 2022	100 years	1,624	UNEP

R409A is a blend. Shares by mass as MfE states them.

Every open record of R409A this page reads, with the figures it prints.

Publisher	Record	Region	Figures	Factor page
MfE	Refrigerant Use - Refrigerant blends: Zeotropes - 409A - R-22/124/142b (60.0/25.0/15.0)	New Zealand	AR5 100 years: 1,484.75
UNEP	R-409A - R-22/124/142b (60.0/25.0/15.0)	World	AR4 100 years: 1,585 · WMO 2022 20 years: 4,691 · WMO 2022 100 years: 1,624

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