R407B GWP: global warming potential (AR4, AR5, AR6)

R407B has a 100-year global warming potential (GWP) of 2,804 under AR4, 2,547 under AR5, 3,001 under AR6, and 3,043 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.

R407B: global warming potential by report and horizon, in kg CO₂e per kg
Report	Horizon	GWP	Printed by
AR4	100 years	2,804	UNEP
AR5	100 years	2,547	DESNZ
AR6	100 years	3,001	MITECO
WMO 2022	20 years	5,827	UNEP
WMO 2022	100 years	3,043	UNEP

R407B is a blend. Shares by mass as MITECO states them.

Every open record of R407B this page reads, with the figures it prints.

Publisher	Record	Region	Figures
DESNZ	Blends - R407B	United Kingdom	AR5 100 years: 2,547
MITECO	R-407B - R-32/125/134a (10/70/20)	Spain	AR6 100 years: 3,001
UNEP	R-407B - R-32/125/134a (10.0/70.0/20.0)	World	AR4 100 years: 2,804 · WMO 2022 20 years: 5,827 · WMO 2022 100 years: 3,043

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