The last United Nations Climate Change Conference was referred to as
“COP26”. What is COP an abbreviation of?
Conference of Parties
Concerns of People
Climate on Precipice
Congress of Preservation

The correct expansion of “COP” in “COP26” is Conference of the Parties.​

What does COP mean?

In the context of United Nations climate conferences such as COP26, COP stands for Conference of the Parties, where “Parties” refers to the countries that have joined the UN Framework Convention on Climate Change (UNFCCC). These conferences are the main decision‑making meetings where governments review climate commitments, negotiate new agreements, and track global progress on limiting climate change.​

Explanation of each option

• Conference of Parties
  This is essentially the intended correct idea but the standard and precise term is Conference of the Parties (with “the”). In exams and official UN usage, the presence of “the” matters, so the accepted full form of COP is “Conference of the Parties,” making this option conceptually right but not formally worded.​

• Concerns of People
  This phrase does not correspond to any official UN body or treaty mechanism related to climate negotiations. While climate conferences certainly address people’s concerns, “Concerns of People” is not a recognized acronym or decision‑making institution within the UNFCCC process.​

• Climate on Precipice
  This is an expressive phrase, but it is not an institutional or legal term used by the United Nations. It does not describe any formal organ, treaty, or conference, and therefore cannot be the correct expansion of COP in this context.​

• Congress of Preservation
  The UN climate meetings are not called a “Congress of Preservation” in any treaty text or official documentation. The recognized legal name remains “Conference of the Parties,” so this option is incorrect for the abbreviation COP.​

Short exam‑style answer

In questions about COP26 and similar UN climate meetings, COP = Conference of the Parties, referring to the parties (countries) to the UNFCCC that meet annually to negotiate and review climate action.​