1. United Nations, Montreal Protocol on Substances that Deplete the Ozone Layer. https://ozone.unep.org/treaties/montreal-protocol-substances-deplete-ozone-layer/text. Accessed 4 November 2021.
2. The Montreal Protocol protects the terrestrial carbon sink;Young;Nature,2021
3. R. J. Salawitch , , “Twenty questions and answers about the ozone layer: 2018 Update” (World Meteorological Organization, United Nations Environment, National Oceanic and Atmospheric Administration, National Aeronautics and Space Administration, and European Commission, 2019).
4. UNEP OzonAction, About Montreal Protocol. https://www.unep.org/ozonaction/who-we-are/about-montreal-protocol. Accessed 4 November 2021.
5. SAP, “Scientific assessment of ozone depletion: 2018” (World Meteorological Organization, United Nations Environment, National Oceanic and Atmospheric Administration, National Aeronautics and Space Administration, and European Commission, 2019).