Our World
in Data
Oxford Martin School logoUniversity of Oxford logoGlobal Change Data Lab logo
Data

Countries subscribed to the Montreal Protocol

About this data

Source
UNEP (2023) – processed by Our World in Data
Last updated
April 5, 2018
Date range
1985–2022
Unit
parties subscribed to Montreal Protocol

Sources and processing

This data is based on the following sources

UNEP – Parties to Montreal Protocol

Through The Vienna Convention on the Protection of the Ozone Layer governments committed themselves to protect the ozone layer and to co-operate with each other in scientific research to improve understanding of the atmospheric processes.

The Montreal Protocol on Substances that Deplete the Ozone Layer was adopted by Governments in 1987 and has been modified five times so far. Its control provisions were strengthened through four adjustments to the Protocol adopted in London (1990), Copenhagen (1992), Vienna (1995), Montreal (1997) and Beijing (1999). The Protocol aims to reduce and eventually eliminate the emissions of man-made ozone depleting substances

Retrieved on
April 5, 2018
Retrieved from
http://ede.grid.unep.ch/
Citation
This is the citation of the original data obtained from the source, prior to any processing or adaptation by Our World in Data. To cite data downloaded from this page, please use the suggested citation given in Reuse This Work below.
United Nations Environment Programme (UNEP).

Through The Vienna Convention on the Protection of the Ozone Layer governments committed themselves to protect the ozone layer and to co-operate with each other in scientific research to improve understanding of the atmospheric processes.

The Montreal Protocol on Substances that Deplete the Ozone Layer was adopted by Governments in 1987 and has been modified five times so far. Its control provisions were strengthened through four adjustments to the Protocol adopted in London (1990), Copenhagen (1992), Vienna (1995), Montreal (1997) and Beijing (1999). The Protocol aims to reduce and eventually eliminate the emissions of man-made ozone depleting substances

Retrieved on
April 5, 2018
Retrieved from
http://ede.grid.unep.ch/
Citation
This is the citation of the original data obtained from the source, prior to any processing or adaptation by Our World in Data. To cite data downloaded from this page, please use the suggested citation given in Reuse This Work below.
United Nations Environment Programme (UNEP).

How we process data at Our World in Data

All data and visualizations on Our World in Data rely on data sourced from one or several original data providers. Preparing this original data involves several processing steps. Depending on the data, this can include standardizing country names and world region definitions, converting units, calculating derived indicators such as per capita measures, as well as adding or adapting metadata such as the name or the description given to an indicator.

At the link below you can find a detailed description of the structure of our data pipeline, including links to all the code used to prepare data across Our World in Data.

Read about our data pipeline

Reuse this work

  • All data produced by third-party providers and made available by Our World in Data are subject to the license terms from the original providers. Our work would not be possible without the data providers we rely on, so we ask you to always cite them appropriately (see below). This is crucial to allow data providers to continue doing their work, enhancing, maintaining and updating valuable data.
  • All data, visualizations, and code produced by Our World in Data are completely open access under the Creative Commons BY license. You have the permission to use, distribute, and reproduce these in any medium, provided the source and authors are credited.

Citations

How to cite this page

To cite this page overall, including any descriptions, FAQs or explanations of the data authored by Our World in Data, please use the following citation:

“Data Page: Countries subscribed to the Montreal Protocol”. Our World in Data (2026). Data adapted from UNEP. Retrieved from https://archive.ourworldindata.org/20260518-090244/grapher/countries-to-montreal-protocol-and-vienna-convention.html [online resource] (archived on May 18, 2026).

How to cite this data

In-line citationIf you have limited space (e.g. in data visualizations), you can use this abbreviated in-line citation:

UNEP (2023) – processed by Our World in Data

Full citation

UNEP (2023) – processed by Our World in Data. “Countries subscribed to the Montreal Protocol” [dataset]. UNEP, “Parties to Montreal Protocol” [original data]. Retrieved May 18, 2026 from https://archive.ourworldindata.org/20260518-090244/grapher/countries-to-montreal-protocol-and-vienna-convention.html (archived on May 18, 2026).

Download

Quick download

You can download the visualization as an image or download the chart data.