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Parties to the Montreal Protocol tackled technical work on two issues that are crucial to efforts to repair and protect the ozone layer: the unexpected increase in emissions of trichlorofluoromethane (CFC-11) and developments related to energy-efficient and low-global-warming-potential technologies.
Final report
Summary report 14–17 July 2021
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With two urgent technical issues on its agenda, the Open-ended Working Group of the Parties to the Montreal Protocol reconvened virtually for the second part of its 43rd meeting. Parties considered updated technical reports on 1) unexpected emissions of trichlorofluoromethane (CFC-11), and 2) energy-efficient and low-global-warming-potential technologies.
On 14 and 15 July, parties considered unexpected emissions of CFC-11, an ozone-depleting substance that was phased out of production and use in 2010, as mandated under the Montreal Protocol. While emissions and atmospheric abundances were expected to decrease as a result of this global action, scientific studies published in 2018 revealed that levels had increased between 2014 and 2016.
At this meeting, the Scientific Assessment Panel (SAP) and Technology and Economic Assessment Panel (TEAP) presented their respective reports on unexpected emissions of CFC-11. The SAP provided additional information on atmospheric monitoring and modeling, as well as updated measurements and analysis. TEAP presented updates including: (a) an analysis of CFC-11 banks; (b) linkages between the level of production of anhydrous hydrogen fluoride and carbon tetrachloride and unexpected emissions of CFC-11; (c) the types of CFC-11 products, the disposition of any such products, and opportunities and methods for detecting such products and potentially recovering the associated CFC-11; and (d) identification of possible drivers of illegal production of and trade in CFC-11.
On 16 and 17 July, participants addressed the technical aspects of the TEAP’s updated energy efficiency report, focusing on new developments in best practices, availability, accessibility, and cost of energy-efficient technologies in the refrigeration, air conditioning, and heat pump sectors. This work supports implementation of the 2016 Kigali Amendment to the Montreal Protocol, where parties committed to cut the production and consumption of hydrofluorocarbons (HFCs) by over 80% over the next 30 years.
Both technical meetings offered substantially identical sessions on different days to accommodate participants in a range of time zones. The first session for each issue was held from 9:00 am to 12:00 pm (UTC+3) on 14 and 16 July, respectively, with the second sessions held from 4:00 pm to 7:00 pm (UTC+3) on 15 and 17 July. The sessions included time for questions and answers, as well as general statements. Associated policy issues were not considered during these meetings.
View past and future events
Past event
Vienna Convention COP 5 and Montreal Protocol MOP 11
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20th Meeting of the Open-Ended Working Group of the Parties to the Montreal Protocol
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Montreal Protocol MOP 12
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Montreal Protocol MOP 13
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22nd Meeting of the Open-Ended Working Group of the Parties to the Montreal Protocol
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Vienna Convention COP 6 and Montreal Protocol MOP 14
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Montreal Protocol MOP 15
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1st Extraordinary Meeting of the Parties to the Montreal Protocol (ExMOP-1)
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Montreal Protocol MOP 16
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25th Meeting of the Open-ended Working Group of the Parties and 2nd Extraordinary Meeting of the Parties to the Montreal Protocol (ExMOP-2)
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Vienna Convention COP 7 and Montreal Protocol MOP 17
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26th Meeting of the Open-Ended Working Group of the Parties to the Montreal Protocol
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Montreal Protocol MOP 18
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Montreal Protocol MOP 19
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Viena Convention COP 8 and Montreal Protocol MOP 20
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29th Meeting of the Open-Ended Working Group of the Parties to the Montreal Protocol
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Montreal Protocol MOP 21
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Montreal Protocol MOP 22
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31st Meeting of the Open-Ended Working Group of the Parties to the Montreal Protocol
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Vienna Convention COP 9 and Montreal Protocol MOP 23
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32nd Meeting of the Open-Ended Working Group of the Parties to the Montreal Protocol
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Montreal Protocol MOP 24
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33rd Meeting of the Open-Ended Working Group of the Parties to the Montreal Protocol
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Montreal Protocol MOP 25
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34th Meeting of the Open-Ended Working Group of the Parties to the Montreal Protocol
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Vienna Convention COP 10 and Montreal Protocol MOP 26
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Workshop on Hydrofluorocarbon Management and 35th Meeting of the Open-ended Working Group of the Parties to the Montreal Protocol
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36th Meeting of the Open-Ended Working Group of the Parties to the Montreal Protocol
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Resumed 36th Meeting of the Open-ended Working Group of the Parties to the Montreal Protocol
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Montreal Protocol MOP 27
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37th Meeting of the Open-Ended Working Group of the Parties to the Montreal Protocol
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3rd Extraordinary Meeting of the Parties to the Montreal Protocol (ExMOP 3) and Associated Meetings
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Montreal Protocol MOP 28
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39th Meeting of the Open-Ended Working Group of the Parties to the Montreal Protocol
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Vienna Convention COP 11 and Montreal Protocol MOP 29
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Workshop on Energy Efficiency Opportunities While Phasing-Down Hydrofluorocarbons (HFCs) and 40th Meeting of the Open-Ended Working Group of the Parties to the Montreal Protocol on Substances that Deplete the Ozone Layer
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30th Meeting of the Parties to the Montreal Protocol on Substances that Deplete the Ozone Layer
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41st Meeting of the Open-Ended Working Group of the Parties to the Montreal Protocol on Substances that Deplete the Ozone Layer (OEWG 41)
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31st Meeting of the Parties to the Montreal Protocol on Substances that Deplete the Ozone Layer (MOP 31)
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42nd Meeting of the Open-ended Working Group of the Parties to the Montreal Protocol on Substances that Deplete the Ozone Layer (OEWG 42)
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12th Meeting of the Conference of the Parties to the Vienna Convention (Part I) and 32nd Meeting of the Parties to the Montreal Protocol
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4th Extraordinary Meeting of the Parties to the Montreal Protocol (ExMOP-4) and 1st Part of the 43rd Meeting of the Open-ended Working Group (OEWG43)
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2nd Part of the 43rd Meeting of the Open-ended Working Group of the Parties to the Montreal Protocol (OEWG 43)
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Combined 12th Meeting of the Conference of the Parties to the Vienna Convention (Part II) and 33rd Meeting of the Parties to the Montreal Protocol
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44th Meeting of the Open-ended Working Group of the Parties to the Montreal Protocol (OEWG-44) and 5th Extraordinary Meeting of the Parties to the Montreal Protocol (ExMOP-5)
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34th Meeting of the Parties to the Montreal Protocol on Substances that Deplete the Ozone Layer (MOP34)
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45th Meeting of the Open-ended Working Group of the Parties to the Montreal Protocol
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35th Meeting of the Parties to the Montreal Protocol on Substances that Deplete the Ozone Layer (MOP35)
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46th Meeting of the Open-ended Working Group of the Parties to the Montreal Protocol
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13th Meeting of the Conference of the Parties to the Vienna Convention for the Protection of the Ozone Layer (COP13) and 36th Meeting of the Parties to the Montreal Protocol on Substances that Deplete the Ozone Layer (MOP36)
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