Vienna Convention and Montreal Protocol on Substances that Deplete the Ozone Layer

Concerns the Earth’s stratospheric ozone layer could be at risk from chlorofluorocarbons (CFCs) and other anthropogenic substances first arose in the early 1970s. By 1985, scientific understanding of ozone depletion and its impacts on human health and the environment had advanced. In response, governments adopted the Vienna Convention for the Protection of the Ozone Layer—a framework convention that lays out agreed principles to combat this ozone depletion. It does not, however, require countries to take control actions to protect the ozone layer.

In September 1987, efforts to negotiate binding obligations to reduce use of ozone depleting substances led to the adoption of the Montreal Protocol on Substances that Deplete the Ozone Layer. The Montreal Protocol phases out both the production and consumption of ozone-depleting substances. The Protocol has been adjusted or amended six times since its creation, most recently by the Kigali Amendment in 2016.

Events

Showing 1 - 10 of 46 results

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)

The first in-person meeting in over two years replenished the Multilateral Fund and addressed questions of gaps in global monitoring of ozone depleting substances, specific usage and production of methyl bromide and carbon tetrachloride, and energy efficiency and phase-down of hydrofluorocarbons that contribute to climate change.
Conference of the Parties (COP) 11 July 2022 - 16 July 2022

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

Delegates discussed closing gaps in monitoring of ozone depleting substances as well as low global-warming potential and energy efficient technologies. They adopted 18 decisions, including on compliance and reporting, to ensure the Convention and the Protocol protect the ozone layer and combat climate change.
Conference of the Parties (COP) 23 October 2021 - 29 October 2021

12th Meeting of the Conference of the Parties to the Vienna Convention (Part I) and 32nd Meeting of the Parties to the Montreal Protocol

As the meeting closed, delegates agreed that the meeting sent an important signal that despite difficulties caused by the COVID-19 pandemic, the goals of the Montreal Protocol are well on track and, while virtual meetings are difficult, they showed that if something should be done, it can be done.
Conference of the Parties (COP) 23 November 2020 - 27 November 2020

42nd Meeting of the Open-ended Working Group of the Parties to the Montreal Protocol on Substances that Deplete the Ozone Layer (OEWG 42)

This online technical session addressed the Technology and Economic Assessment Panel (TEAP) Replenishment Task Force’s (RTF) report on the replenishment of the Multilateral Fund (MLF) for 2021-2023, which is essential to the continued success of the Montreal Protocol in phasing out ozone depleting substances and greenhouse gases.
Event 14 July 2020 - 16 July 2020

31st Meeting of the Parties to the Montreal Protocol on Substances that Deplete the Ozone Layer (MOP 31)

Delegates to the 31st Meeting of the Parties to the Montreal Protocol successfully completed five days of negotiations, with the most pressing agenda items—terms of reference for the study on the 2021-2023 replenishment of the Multilateral Fund, the unexpected emissions of trichlorofluoromethane (CFC-11), and the areas of focus for the 2022 quadrennial assessment reports of the three Assessment Panels—requiring careful negotiation to balance different parties’ agendas. 
Conference of the Parties (COP) 4 November 2019 - 8 November 2019