References
- Andersen SO, Gao S, Carvalho S, Ferris T, Gonzalez M, Sherman NJ, Wei Y, Zaelke D. 2021. Narrowing feedstock exemptions under the Montreal protocol has multiple environmental benefits. Proc Natl Acad Sci USA. 118(49):49. doi: 10.1073/pnas.2022668118.
- Compton J. 2021. International nitrogen initiative, social cost of nitrous oxide (N2O): cost of N2O release from human activities to the environment. [accessed Oct 2023]. https://cfpub.epa.gov/si/si_public_record_Report.cfm?dirEntryId=350908&Lab=CPHEA#:~:text=Nitrous%20oxide%20is%20currently%20the,greenhouse%20gas%20for%20radiative%20forcing.
- Dreyfus G, Montzka SA, Andersen SO, Ferris R. 2024. Technical note: a method for calculating offsets to ozone depletion and climate impacts of ozone-depleting substances. Atmos Chem Phys. 24(3):2023–12. doi: 10.5194/acp-24-2023-2024.
- Environmental Investigation Agency. 2018. CFC-11 illegal production and use in China: blowing it. [accessed Jan 2024]. https://eia-international.org/report/blowing-it/.
- Environmental Investigation Agency. 2019. Search, reuse and destroy: initiating global discussion to act on a 100 billion ton climate problem. [accessed Oct 2023]. https://us.eia.org/report/20191106-search-reuse-destroy-global-discussion/.
- Environmental Investigation Agency. 2021. Unexpected CFC-11 emissions: briefing to the 43rd meeting of the open-ended working group of the parties to the Montreal protocol (OEWG 43). [accessed Oct 2023]. https://ozone.unep.org/meetings/43rd-meeting-open-ended-working-group-parties-montreal-protocol/publications.
- Intergovernmental Panel on Climate Change (IPCC). 2022. AR6 WGIII climate change 2022: mitigation of climate change. [accessed Oct 2023]. https://www.ipcc.ch/report/ar6/wg3/.
- Kanter D, Mauzerall D, Ravishankara AR, Daniel JS, Portmann RW, Grabiel PM, Moomaw WR, Galloway JN. 2013. A post-Kyoto partner: considering the stratospheric ozone regime as a tool to manage nitrous oxide. Proc Natl Acad Sci USA. 110(12):4451–4457. doi: 10.1073/pnas.1222231110.
- Kanter D, Ogle S, Winiwarter W. 2020. Building on Paris: integrating nitrous oxide mitigation into future climate policy. Curr Opin Sust. 47:7–12. doi: 10.1016/j.cosust.2020.04.005.
- Lickley M, Fletcher S, Rigby M, Solomon S. 2021. Joint inference of CFC lifetimes and banks suggests previously unidentified emissions. Nat Commun. 12(1):2920. doi: 10.1038/s41467-021-23229-2.
- Montzka SA, Dutton GS, Yu P, Ray E, Portmann RW, Daniel JS, Kuijpers L, Hall BD, Mondeel D, Siso C, et al. 2018. An unexpected and persistent increase in global emissions of ozone-depleting CFC-11. Nature. 557(7705):413–417. doi: 10.1038/s41586-018-0106-2.
- Mühle J, Kuijpers LJ, Stanley KM, Rigby M, Western LM, Kim J, Park S, Harth CM, Krummel PB, Fraser PJ, et al. 2022. Global emissions of perfluorocyclobutane (PFC-318, c-C4F8) resulting from the use of hydrochlorofluorocarbon-22 (HCFC-22) feedstock to produce polytetrafluoroethylene (PTFE) and related fluorochemicals. Atmos Chem Phys. 22(5):3371–3378. doi: 10.5194/acp-22-3371-2022.
- Multilateral Fund for the Implementation of the Montreal Protocol. 2022. Report of the ninety-first meeting of the executive committee. NEP/OzL.Pro/ExCom/91/72. [accessed Oct 2023]. http://www.multilateralfund.org/91/default.aspx.
- Purohit P, Borgford-Parnell N, Klimont Z, Höglund-Isaksson L. 2022. Achieving Paris climate goals calls for increasing ambition of the Kigali amendment. Nat Clim Chang. 12(4):339–342. doi: 10.1038/s41558-022-01310-y.
- Richardson K, Steffen W, Lucht W, Bendtsen J, Cornell SE, Donges JF, Drüke M, Fetzer I, Bala G, von Bloh W, et al. 2023. Earth beyond six of nine planetary boundaries. Sci Adv. 9(37):eadh2458. doi: 10.1126/sciadv.adh2458.
- Rigby M, Park S, Saito T, Western LM, Redington AL, Fang X, Henne S, Manning AJ, Prinn RG, Dutton GS, et al. 2019. Increase in CFC-11 emissions from eastern China based on atmospheric observations. Nature. 569(7757):546–550. doi: 10.1038/s41586-019-1193-4.
- Rogelj J, Shindell D, Jiang K. 2018. Special report on global warming of 1.5 °C (Ch. 2). Cambridge University Press. [accessed Oct 2023]. https://www.ipcc.ch/sr15/.
- Sherry D, McCulloch A, Liang Q, Reimann S, Newman PA. 2018. Current sources of carbon tetrachloride (CCl4) in our atmosphere. Environ Res Lett. 13(2):024004. doi: 10.1088/1748-9326/aa9c87.
- Solomon S, Alcamo J, Ravishankara AR. 2020. Unfinished business after five decades of ozone-layer science and policy. Nat Commun. 11(1):4272. doi: 10.1038/s41467-020-18052-0.
- Stanley KM, Say D, Mühle J, Harth CM, Krummel PB, Young D, O’Doherty SJ, Salameh PK, Simmonds PG, Weiss RF, et al. 2020. Increase in global emissions of HFC-23 despite near-total expected reductions. Nat Commun. 11(1):1–6. doi: 10.1038/s41467-019-13899-4.
- Tian H, Xu R, Canadell JG, Thompson RL, Winiwarter W, Suntharalingam P, Davidson EA, Ciais P, Jackson RB, Janssens-Maenhout G, et al. 2020. A comprehensive quantification of global nitrous oxide sources and sinks. Nature. 586(7828):248–256. doi: 10.1038/s41586-020-2780-0.
- United Nations Environment Programme (UNEP). 1985. The Vienna convention for the protection of the ozone layer. Annex I: research and systematic observations. [accessed Jan 2024]. https://ozone.unep.org/treaties/vienna-convention.
- United Nations Environment Programme (UNEP). 1987. The Montreal protocol on substances that deplete the ozone layer. Article 2: control measures and annex A: controlled substances. [accessed Oct 2023]. https://treaties.un.org/Pages/ViewDetails.aspx?src=IND&mtdsg_no=XXVII-2-a&chapter=27&clang=_en.
- United Nations Environment Programme (UNEP). 2009. Proposed amendment to the Montreal protocol submitted by the federated States of Micronesia and Mauritius. UNEP/ozL.Pro.wg.1/29/8. [accessed Oct 2023]. https://ozone.unep.org/meetings/twenty-ninth-meeting-open-ended-working-group-parties.
- United Nations Environment Programme (UNEP). 2019. Unexpected emissions of CFC-11: update to the overview provided at the forty-first meeting of the open-ended working group. UNEP/ozL.Pro.31/6. [accessed Oct 2023]. https://ozone.unep.org/meetings/thirty-first-meeting-parties/pre-session-documents.
- United Nations Environment Programme (UNEP). 2020. Handbook for the Montreal protocol. [accessed Oct 2023]. https://ozone.unep.org/treaties/montreal-protocol.
- United Nations Environment Programme (UNEP). 2021a. Information provided by parties in accordance with articles 7 and 9 of the Montreal protocol on substances that deplete the ozone layer. UNEP/OzL.Pro.33/6 Annex III. [accessed Oct 2023]. https://ozone.unep.org/meetings/thirty-third-meeting-parties/pre-session-documents.
- United Nations Environment Programme (UNEP). 2021b. Report of the technology and economic assessment panel. Volume 1: progress report, September 2021. [accessed Oct 2023]. https://ozone.unep.org/science/assessment/teap.
- United Nations Environment Programme (UNEP). 2022a. Decisions of the meetings of the parties to the Montreal protocol. Decision XXXIV/5: identification of gaps in the global coverage of atmospheric monitoring of controlled substances and options for enhancing such monitoring. [accessed Oct 2023]. https://ozone.unep.org/treaties/montreal-protocol/decisions/by-meeting.
- United Nations Environment Programme (UNEP). 2022b. Report of the medical and chemical technical options committee: 2022 assessment report. [accessed Oct 2023].
- United Nations Environment Programme (UNEP). 2023a. Report of the technology and economic assessment panel. Volume 1: progress report, May 2023. [accessed Oct 2023].
- United Nations Environment Programme (UNEP). 2023b. Summary of the workshop on strengthening the effective implementation and enforcement of the Montreal protocol. UNEP/OzL.Pro.WG.1/45/6. [accessed Oct 2023]. https://ozone.unep.org/meetings/45th-meeting-open-ended-working-group-parties/pre-session-documents.
- United Nations Environment Programme (UNEP). 2024. Country data (web page). [accessed Jan 2024]. https://ozone.unep.org/all-ratifications.
- United Nations Framework Convention on Climate Change. 2023. 2023 NDC synthesis report. [accessed Jan 2024]. https://unfccc.int/ndc-synthesis-report-2023.
- Velders GJM, Andersen SO, Daniel JS, Fahey DW, McFarland M. 2007. The importance of the Montreal protocol in protecting climate. Proc Natl Acad Sci USA. 104(12):4814–4819. doi: 10.1073/pnas.0610328104.
- Vollmer MK, Mühle J, Henne S, Young D, Rigby M, Mitrevski B, Park S, Lunder CR, Rhee TS, Harth CM, et al. 2021. Unexpected nascent atmospheric emissions of three ozone-depleting hydrochlorofluorocarbons. Proc Natl Acad Sci USA. 118(5):2021. doi: 10.1073/pnas.2010914118.
- Western L, Vollmer MK, Krummel PB, Adcock KE, Crotwell M, Fraser PJ, Harth CM, Langenfelds RL, Montzka SA, Mühle J, et al. 2023. Global increase of ozone-depleting chlorofluorocarbons from 2010 to 2020. Nat Geosci. 16(4):309–313. doi: 10.1038/s41561-023-01147-w.
- World Meteorological Organization (WMO). 2021. Report on the unexpected emissions of CFC-11. WMO-No. 1268. [accessed Oct 2023].
- World Meteorological Organization (WMO). 2022. Scientific assessment of ozone depletion: 2022. GAW report No. 278 509. Geneva: WMO. [accessed Oct 2023].
- Young PJ, Harper AB, Huntingford C, Paul ND, Morgenstern O, Newman PA, Oman LD, Madronich S, Garcia RR. 2021. The Montreal Protocol protects the terrestrial carbon sink. Nature. 596(7872):384–388. doi: 10.1038/s41586-021-03737-3.