In this issue: 1. Special End of Year Message, Tina Birmpili, Executive Secretary, Ozone Secretariat, "The Kigali Amendment: A New Year’s resolution we cannot break" 2. Buildings and construction sector – Huge untapped potential for emission reductions 3. Ozone depletion increases Antarctic snowfall, partially mitigates ice sheet loss 4. How ice particles promote the formation of radicals 5. Mini Screw: the development of a high-CFM compact compressor for LGWP A1 low-pressure refrigerant 6. "The Dawn of a New Refrigeration Era - The Kigali Amendment for a Brighter Future" [...]