In this issue: 1. Kigali Amendment latest ratification 2. New OzonAction Knowledge Maps tool 3. Revised contingency plan for the 2021 meetings of the ozone treaties 4. Climate change favours large seasonal loss of Arctic ozone 5. The World Customs Organisation: Amendments effective from 1 January 2022 6. Study warns of long-term dangers of HFOs 7. Serbia’s path to achieving sustainable refrigeration: Interview by UNIDO with Ms Bojana Radeski and Mr Vasil Eftimov 8. Green Cooling Summit 2021: Conference Materials