The terms mentioned above are all related to the Kyoto Protocol. Here's a brief explanation of each term Annex-I Countries: These countries have pledged to reduce their emissions by being a part of the Kyoto Protocol.The Cartagena Protocol is a separate international treaty on biosafety. Certified Emissions Reductions: These are a type of carbon credit that is granted by the Kyoto Protocol for achieving emission reductions through a clean development mechanism project. The Nagoya Protocol is another international treaty focusing on access to genetic resources and the fair and equitable sharing of benefits arising from their utilization. Clean Development Mechanism: It is a mechanism under the Kyoto Protocol that allows developed countries to invest in emission reduction projects in developing countries as a way to earn emission reduction credits.