Climate-friendly cooling to help ease global warming

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Credit: CC0 Public Domain

A new IIASA-led study shows that coordinated international action on energy-efficient, climate-friendly cooling could avoid as much as 600 billion tons CO2 equivalent of greenhouse gas emissions in this century.


Hydrofluorocarbons (HFCs) are mainly used for cooling and refrigeration. While they were originally developed to replace ozone-depleting substances that are being phased out under the Montreal Protocol, many HFCs are potent greenhouse gases with a global warming potential up to 12,400 times that of CO2 over a 100-year period.

The Kigali Amendment to the Montreal Protocol, which entered into force in 2019, aims to phase down the consumption of HFCs by 2050. While previous agreements have resulted in improvements in the design and energy performance of, for instance, cooling equipment, the Kigali Amendment is the first to include maintaining and/or enhancing the energy efficiency of cooling technologies as an explicit goal. According to the

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