Some of the main stakeholders and negotiating blocs engaged in the U.N. climate conference COP27 are starting today. 197 is the number of signatories to the U.N. Framework Convention on Climate Change. Each of them has their own concerns and interests, which makes reaching any consensus a huge challenge. Here is a look at some of the main stakeholders and negotiating blocs engaged in the 2022 U.N. climate conference COP27.