This '.xlsx' file contains the ratification data analysed and discussed in the MSc thesis of Alexander Stanley, using the data available on EcoLex at the following links, as further described in Chapter 5 - Methods section of the thesis: 1. For the MP1987: https://www.ecolex.org/details/montreal-protocol-on-substances-that-deplete-the-ozone-layer-tre-000953/participants/?q=montreal+protocol&type=treaty&xdate_min=&xdate_max= 2. For the LDN1990: https://www.ecolex.org/details/amendment-to-the-montreal-protocol-on-substances-that-deplete-the-ozone-layer-tre-001102/participants/?q=montreal+protocol&type=treaty&xdate_min=&xdate_max= 3. For the CPN1992: https://www.ecolex.org/details/amendment-to-the-montreal-protocol-on-substances-that-deplete-the-ozone-layer-tre-001165/participants/?q=montreal+protocol&type=treaty&xdate_min=&xdate_max= 4. For the MON1997: https://www.ecolex.org/details/amendment-to-the-montreal-protocol-on-substances-that-deplete-the-ozone-layer-tre-001287/participants/?q=montreal+protocol&type=treaty&xdate_min=&xdate_max= 5. For the BEI1999: https://www.ecolex.org/details/amendment-to-the-montreal-protocol-on-substances-that-deplete-the-ozone-layer-tre-001339/participants/?q=montreal+protocol&type=treaty&xdate_min=&xdate_max= 6. For the KP: https://www.ecolex.org/details/kyoto-protocol-to-the-united-nations-framework-convention-on-climate-change-tre-001269/participants/?q=kyoto+protocol&type=treaty&xdate_min=&xdate_max= 7. For the PA: https://www.ecolex.org/details/paris-agreement-tre-160054/participants/?q=paris+agreement&type=treaty&xdate_min=&xdate_max= As also detailed in the thesis, additional PA ratification data for Iraq and Turkey was obtained from the United Nations Treaty Series: https://treaties.un.org/Pages/AdvanceSearch.aspx?tab=UNTS&clang=_en

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