What does COP mean? The Conference of the Parties (COP) is the decision-making body of the UNFCCC to which all 197 Parties to the Convention send representatives. The COP meets every year to review the work of the UNFCCC and review the progress made in achieving the objectives of the convention. There have been 23 COPs since the UNFCCC's creation in 1995. The next COP (COP24) will take place 3-14 December 2018 in Katowice, Poland. COPs are sometimes also referred to as 'international climate change talks' or similar. Find out more.