Finishing the job: The Montreal Protocol moves to phase down hydrofluorocarbons


Mark Roberts
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Awareness Materials
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In October 2016, parties to the Montreal Protocol on Substances that Deplete the Ozone Layer unanimously agreed to amend the Protocol to allow for the phasedown of the super greenhouse gases hydrofluorocarbons (HFCs). The Kigali Amendment is expected to mitigate 70–100 billion tonnes of carbon dioxide equivalents by 2050, and prevent up to 0.5 degrees Celsius increase in the Earth’s temperature by 2100. Prioritizing energy-efficient technologies in the refrigeration and air conditioning sector could potentially double these mitigation gains. By phasing down HFCs, the Montreal Protocol will be able to restore the ozone layer without exacerbating global climate change.


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