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T1 OzoNews Volume XXI - 15 December 2021
A1 United Nations Environment Programme, 
K1 ozone layer
YR 2021
FD 2021-12
LK https://wedocs.unep.org/handle/20.500.11822/37707
UL https://wedocs.unep.org/handle/20.500.11822/37707
NO In this issue:1. Kigali Amendment latest ratifications2. Status of Patents and Legal Challenges: Patents Related to The use of HFO-1234yf in Auto Air Conditioning3. 14 Nations Commit to Improving Appliance Efficiency4. New source of potent greenhouse gas emissions identified in permafrost5. Vanuatu ODS module launched!6. Philippines Targets 80% Reduction in HFC Use by 20457. China consults on a draft list of alternatives to HCFCs8. Asia-Pacific launch a year-long Ozone2Climate Art Contest9. ¿Tenemos los refrigerantes del futuro?10. EarthTalk – Have the benefits of protecting the ozone layer been calculated?11.  “Heat Pumps to Save the World”12. EU remains on track to phase-down use of climate-damaging F-gases
DS UN Environment Document Repository
RD Sep 20, 2026