14 October 2022 (Hyderabad, India)
4 August 2022 (New York)
11 March 2021 (Virtual meeting)
14 May 2020 (Virtual meeting)
1 April 2019 (Amsterdam, the Netherlands)
23 November 2018 (Deqing, China)
1 December 2017 (Mexico City, Mexico)
7-9 December 2016 (New York)
7-9 December 2015 (New York)
Annual sessions
- Fifteenth session
- Fourteenth session
- Thirteenth session
- Twelfth session
- Eleventh session
- Past sessions