Paris Agreement

Paris Agreement
L.tak · CC BY-SA 4.0 · source
Name	Paris Agreement
Signed	12 December 2015
Location	COP21 Le Bourget Paris
Parties	195 parties (as of 2021)
Effective	4 November 2016
Depositor	Secretary-General of the United Nations
Language	English, French

Paris Agreement The Paris Agreement is an international treaty concluded at the UNFCCC Conference of the Parties known as COP21 in Le Bourget, Paris, on 12 December 2015. It was adopted by nearly all United Nations parties to the UNFCCC to address global climate change by limiting global temperature rise and enhancing adaptive capacity. The treaty framework mobilizes United Nations processes, Intergovernmental Panel on Climate Change assessments, and national policy instruments to encourage mitigation, adaptation, finance, and technology transfer among OECD and developing states.

Background

The Agreement emerged from decades of multilateral negotiation under the UNFCCC and successive Conference of the Parties sessions including COP3 (where the Kyoto Protocol was adopted) and COP15 in Copenhagen. Scientific assessments by the Intergovernmental Panel on Climate Change and high-profile events such as the 2014 United Nations Climate Summit informed diplomatic pressure from blocs like the European Union, the Alliance of Small Island States, and the G77 and China. Bilateral initiatives between United States and China ahead of COP21 helped bridge differences between major emitters, while civil society organizations, Greenpeace, and scientific institutions advocated emission pathways consistent with limiting warming to well below 2 °C.

Objectives and Key Provisions

The Agreement’s central objective is to hold global temperature increase "well below" 2 °C above pre-industrial levels while pursuing efforts to limit warming to 1.5 °C, referencing Intergovernmental Panel on Climate Change scenarios and the Representative Concentration Pathways. It establishes a five-year cycle for ambition revision and a global stocktake to assess collective progress, integrating reporting obligations from parties to the UNFCCC and encouraging alignment with pathways evaluated by institutions like the International Energy Agency and World Bank. The text recognizes differing national circumstances and references concepts found in previous instruments such as the Kyoto Protocol while creating mechanisms to facilitate technology transfer, capacity building, and cooperative approaches under Article 6, including market and non-market mechanisms.

Nationally Determined Contributions (NDCs)

Parties submit Nationally Determined Contributions as the primary vehicle for mitigation and, where applicable, adaptation plans. NDCs are intended to reflect domestic policy choices by parties such as China, India, European Union, United States, Brazil, South Africa, and Japan, with some countries including economy-wide targets, sectoral measures, and timelines. The Agreement requires NDCs to be updated every five years with progressively higher ambition, and to be transparent through reporting to the UNFCCC Secretariat. International cooperation, including linking of carbon pricing and crediting schemes between jurisdictions like the European Union Emission Trading Scheme and national systems, is foreseen to achieve cost-effective mitigation.

Implementation, Finance and Technology Transfer

Implementation relies on cooperative mechanisms and financial flows from developed to developing parties, building on commitments such as mobilizing $100 billion per year as previously discussed in COP15 negotiations and operationalized through entities like the Green Climate Fund and the Global Environment Facility. The Agreement emphasizes support for adaptation in Least Developed Countries, Small Island Developing States, and vulnerable regions including Sub-Saharan Africa and South-East Asia. Technology transfer and capacity-building arrangements involve partnerships among multinational institutions, national development banks, and multilateral development agencies such as the World Bank Group and Asian Development Bank to enable low-carbon transitions and resilience investments.

Monitoring, Reporting and Verification (MRV)

The Agreement establishes an enhanced transparency framework for action and support, building on MRV systems developed under the UNFCCC and the Paris Rulebook negotiated at subsequent COPs, requiring biennial communications, national inventory reports, and technical expert review processes. The global stocktake, scheduled every five years, synthesizes information from Intergovernmental Panel on Climate Change reports, party submissions, and international assessments to inform successive NDCs. Independent bodies, technical panels, and registry systems hosted by the UNFCCC Secretariat facilitate tracking of mitigation outcomes, finance flows to multilateral funds, and the implementation of cooperative approaches under Article 6.

Criticism, Challenges and Legal Status

Critics from legal scholars, environmental NGOs, and some state delegations, including debates in the International Court of Justice advisory contexts and academic forums, have emphasized the Agreement’s largely non-punitive compliance mechanisms and the nationally determined nature of NDCs, arguing that this limits enforceability compared with treaty regimes like Kyoto Protocol. Challenges include the adequacy of pledged NDCs to achieve 1.5 °C pathways as assessed by the Intergovernmental Panel on Climate Change and the United Nations Environment Programme emissions gap analyses, mobilization of promised finance, transparency implementation in low-capacity parties, and the operationalization of Article 6 market mechanisms. Legal status is that of a binding international treaty under the Vienna Convention on the Law of Treaties, with many substantive obligations framed as procedural or aspirational, leading to ongoing litigation, domestic policy debates in jurisdictions like the European Court of Justice and national courts, and persistent diplomatic negotiation at successive UNFCCC COP sessions.

Category:International environmental treaties