International Climate Change Law: International Agreements

Major sources of international climate change law include the Paris Agreement, the Kyoto Protocol, the United Nations Framework Convention on Climate Change (UNFCCC), and the decisions made by the UNFCCC in implementing these treaties.

For help decoding the many acronyms used in climate change law and science, see this glossary.

The Paris Agreement

The Paris Agreement (TIAS 16-1104)

• Official Text (United States Treaty and Other International Acts Series)
  • The official text can be cumbersome to navigate and is best used for Bluebooking purposes. See this page for a more readable PDF.
  • See also official text in the U.N. Treaty Series
  • Includes a list of participants with treaty adoption status.
  • Includes overviews of the treaty, detailed reports, and treaty-related documents. Explore the "Process and meetings" and "Documents and Decisions" tabs for more.
  • "Nationally determined contributions (NDCs) are at the heart of the Paris Agreement and the achievement of [its] long-term goals. NDCs embody efforts by each country to reduce national emissions and adapt to the impacts of climate change." See this page for a general overview of NDCs.

  The Katowice Climate Package

  • Full Text
  • General Overview (UNFCCC website)

  Additional Reading

  Call Number: Environment K3585.5.A41992 P37 2021 Publication Date: 2021

  "Providing in-depth coverage of each article of the Paris Agreement, this commentary offers a comprehensive, legal analysis of this most recent and important international instrument on climate change." Available in print.

  The Kyoto Protocol

  The Kyoto Protocol (2303 U.N.T.S. 162)

  • Official Text (UN Treaty Series)
    • The official text can be cumbersome to navigate and is best used for Bluebooking purposes. See this page for a more readable PDF.
    • Includes a list of participants with treaty adoption status.
    • Includes overviews of the treaty, detailed reports, and treaty-related documents. Explore the "Process and meetings" and "Documents and Decisions" tabs for more.

    The UNFCCC

    The United Nations Framework Convention on Climate Change (1771 U.N.T.S. 107)

    • Official Text (UN Treaty Series)
      • The official text can be cumbersome to navigate and is best used for Bluebooking purposes. See this page for a more readable PDF.
      • Includes a list of participants with treaty adoption status.
      • Includes news, treaty overviews, detailed reports, and treaty-related documents.
      • See this page for a structural overview of the UNFCCC.

      UNFCCC Decisions

      The UNFCCC consists of multiple bodies tasked with implementing the Convention, the Kyoto Protocol, and the Paris Agreement. The main decision-making bodies are the COP (implementing the Convention as a whole), the CMP (implementing the Kyoto Protocol), and the CMA (implementing the Paris agreement). The decisions made by these bodies provide an additional source of international law that build upon the original treaties. You can find the text of these decisions using the UNFCCC Decisions Database or by browsing topics on the UNFCCC website.

      UNFCCC decisions are titled according to decision number, the decision-making body, and session number. For example, "Decision 3/CMA.1" refers to the third decision made at the first session of the CMA.

      Other UNFCCC Resources

      • National Adaptation Plans Website
        • A registry for National Adaptation Plans from developing countries, as established by Decision 5/CP.17 National Adaptation Plans.
        • For an overview of the NAP process and related resources, see this page on the UNFCCC website.
        • A resource for technical assistance on loss and damage for "developing countries that are particularly vulnerable to the adverse effects of climate change."
        • Established by Decision 2/CMA.2 Warsaw International Mechanism for Loss and Damage associated with Climate Change Impacts and its 2019 review.

        Citation Help

        Citing international agreements according to Bluebook format can be tricky. Which citation format you should use depends on whether the United States is party to a treaty. Making matters more complicated is the inconsistency in where U.S. treaties are published.

        • According to Bluebook Rule 21.4.5(a)(ii), when citing to multilateral treaties to which the U.S. is a party (like the Paris Agreement and the UNFCCC), you should provide a citation to one of the following treaty sources, in order of preference:
          • U.S.T. (U.S. Treaties and Other International Agreements) (ceased production in 1984)
          • Stat. (Statutes at Large) (ceased production in 1949)
          • T.I.A.S. (Treaties and Other International Acts Series)
          • U.N.T.S. (United Nations Treaty Series)
          • One of several more obscure treaty publications not listed here

          The quickest way to find where a treaty was published is to use HeinOnline's World Treaty Index. Search treaties by title to see associated treaty sources. Alternatively, try searching for a law review article that discusses the treaty and check the treaty sources cited in the article.

          Citations to official treaty sources for the Paris Agreement, the Kyoto Protocol, and the UNFCCC are provided above. The best available publication for the Paris Agreement is the Treaties and Other International Acts Series (T.I.A.S.), and the best available publication for the Kyoto Protocol and UNFCCC is the UN Treaty Series (U.N.T.S.).