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South Sudan ratified the Kigali Amendment on 23 October 2026, becoming the 176th country to do so. As a Group 1, Article 5 party, it must freeze HFC production and cut HFC consumption by 80% by 2045, while also reducing HCFC use by 65% against its 2009–2010 baseline.
A pilot project in Volgograd demonstrates how a secondary-loop architecture using propylene glycol enables the use of natural refrigerant R290 in retail without long refrigerant piping in the sales floor.
The UNEP-U4E initiative has published two sustainable procurement guidelines covering air conditioners up to 70 kW and heat-pump-based heating and hot-water systems, complete with a Life Cycle Cost comparison tool. The documents set technical and verification criteria aligned with the Kigali Amendment and the Global Cooling Pledge 2030 procurement targets.
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