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Indo-US task force to study HFC phase-down

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The global warming potentials (GWP) of HFCs range from 140 (HFC-152a) to 11,700 (HFC-23), according to the US EPA. HFCs are chemicals are potential substitutes for ozone-depleting and climate-warming CFCs and HCFCs currently being phased out under the Montreal Protocol treaty to protect the ozone layer.

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Cutting Non-CO2 Pollutants Can Delay Abrupt Climate Change; The Fast Action Climate Agenda

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Shown are the tipping elements [large-scale components of the Earth’s system] and the temperature threshold range that initiates the tipping. HFCs are powerful greenhouse gases originally developed as substitutes for ozone-depleting chemicals. Tropospheric ozone. From Molina et al. Earlier post.) Mario Molina. (Dr. Ramanathan.