Important dates for conferences held on environment-related issues.
*COP – Conference of Parties
Conference of parties – 27 (COP-27) related to climate change named Sharm el-Sheikh conference is going to be hosted by the government of Egypt between Sun, 6 Nov 2022 – Fri, 18 Nov 2022.
| S.No. | Session | Dates | Location |
| 27. | COP-27 | Sun, 6 November 2022 – Fri, 18 November 2022 | Egypt |
| 26. | COP-26 | 9-19 November 2020 rescheduled to 31 October -12 November 2021 | Glasgow, United Kingdom of Great Britain, and Northern Ireland |
| 25. | COP-25 | December 2019 | Madrid, Spain |
| 24. | COP-24 | December 2018 | Katowice, Poland |
| 23. | COP-23 | 6 November – 17 November -2017 | Bonn, Germany |
| 22. | COP-22 | 7 November – 18 November – 2016 | Marrakesh, Morocco |
| 21. | COP-21 | 30 November – 11 December – 2015 | Paris, France |
| 20. | COP-20 | 12 December – 2014 | Lima, Peru |
| 19. | COP-19 | 22 November – 2013 | Warsaw, Poland |
| 18. | COP-18 | 26 November – 7 December- 2012 | Doha, Qatar |
| 17. | COP-17 | 28 November – 9 December – 2011 | Durban, South Africa |
| 16. | COP-16 | December 2010 | Cancun, Mexico |
| 15. | COP-15 | December 2009 | Copenhagen, Denmark |
| 14. | COP-14 | December 2008 | Poznan, Poland |
| 13. | COP-13 | December 2007 | Bali, Indonesia |
| 12. | COP-12 | November 2006 | Nairobi, Kenya |
| 11. | COP-11 | December 2005 | Montreal, Canada (Implemented the Kyoto Protocol) |
| 10. | COP-10 | December 2004 | Buenos Aires, Argentina |
| 9. | COP-9 | December 2003 | Milan, Italy |
| 8. | COP-8 | October 2002 | New Delhi, India |
| 7. | COP-7 | November 2001 | Marrakesh, Morocco |
| 6. | COP-6 | November 2000 | Hague, Netherland |
| 5. | COP-5 | October 1999 | Bonn, Germany |
| 4. | COP-4 | November 1998 | Buenos Aires, Argentina |
| 3. | COP-3 | December 1997 | Kyoto, Japan (Adopted Kyoto Protocol) |
| 2. | COP-2 | July 1997 | Geneva, Swiss |
| 1. | COP-1 | March 1995 | Berlin, Germany |
Related: United Nations Conferences