Model UN Background Guide

Committee: International Court of Justice (ICJ)
Topic: Climate Change Advisory Opinion (Vanuatu Initiative)
Conference Year: 2025

Topic Background

Climate change is widely recognized as one of the most urgent global challenges of the 21st century, impacting ecosystems, economies, and human rights worldwide. The small island developing state (SIDS) of Vanuatu, severely threatened by rising sea levels and extreme weather events, has spearheaded an initiative requesting an advisory opinion from the International Court of Justice (ICJ) on the legal obligations of states concerning climate change. This request seeks to clarify states’ responsibilities under international law to prevent transboundary harm caused by greenhouse gas emissions and to protect vulnerable populations from climate impacts.

The initiative builds on growing frustration with the slow pace of international climate negotiations and the perceived inadequacies of existing frameworks such as the United Nations Framework Convention on Climate Change (UNFCCC) and the Paris Agreement. Vanuatu’s proposal aims to elevate legal clarity and accountability, potentially influencing state behavior and international climate policy.

The ICJ’s advisory opinion mechanism allows the General Assembly, Security Council, or other authorized UN bodies to request non-binding legal interpretations on questions of international law. The Vanuatu initiative, formally supported by several Pacific island states and other vulnerable countries, asks the ICJ to address whether states have an obligation under international law to reduce greenhouse gas emissions and to provide reparations for climate-related damages.

This issue is on the ICJ’s agenda now because of increasing climate litigation worldwide, the urgency of global warming impacts, and the need for definitive legal guidance on states’ duties. The advisory opinion could have profound implications for international environmental law, state sovereignty, and human rights protections in the context of climate change.

Key Actors

Vanuatu and Pacific Island States:
Vanuatu, along with other Pacific SIDS such as Tuvalu, Fiji, and the Marshall Islands, is at the forefront of this initiative. These states face existential threats from rising sea levels and seek stronger international legal mechanisms to compel emissions reductions and secure climate justice.

Major Emitters (United States, China, India):
These countries are among the largest greenhouse gas emitters globally. While they have committed to emissions reductions under the Paris Agreement, they tend to emphasize national sovereignty and voluntary commitments over binding international legal obligations. Their positions on the ICJ advisory opinion are cautious, wary of potential legal liabilities.

European Union and Member States:
The EU and several of its member states, including Germany, France, and the Netherlands, generally support stronger international legal frameworks to combat climate change. They advocate for clear state responsibilities and have actively promoted climate litigation and legal accountability, though they also balance economic interests.

Least Developed Countries (LDCs) and African States:
Many African states and LDCs support the Vanuatu initiative, emphasizing the disproportionate impacts of climate change on vulnerable populations and the need for international legal clarity and climate finance. They view the advisory opinion as a tool to enhance protection and mobilize resources.

International Organizations:

• United Nations Framework Convention on Climate Change (UNFCCC): The primary international treaty body for climate negotiations, emphasizing consensus-based approaches and voluntary commitments.
• United Nations Environment Programme (UNEP): Provides scientific assessments and legal expertise on environmental issues, supporting capacity-building for vulnerable states.
• International Law Commission (ILC): Has contributed to the development of international environmental law principles relevant to transboundary harm and state responsibility.

Bloc Positions

1. Vulnerable States Bloc (Pacific SIDS, Caribbean SIDS, LDCs):
This bloc strongly supports the request for an ICJ advisory opinion. They argue that international law must clearly define states’ obligations to prevent climate harm and provide reparations. They seek stronger legal accountability mechanisms and increased climate finance to address loss and damage.

2. Major Emitters Bloc (United States, China, India, Russia, Brazil):
These states are generally cautious or opposed to the advisory opinion request. They emphasize national sovereignty, the primacy of negotiated agreements like the Paris Agreement, and the risk of legal uncertainty or liability. They prefer political and economic tools over judicial interventions.

3. European Union and Allies Bloc:
The EU and many Western allies support the advisory opinion as a way to reinforce international legal norms and encourage ambitious climate action. They advocate for clear legal duties on emissions reductions and support mechanisms for addressing climate-related damages, though they balance this with concerns about the advisory opinion’s impact on diplomacy.

4. Non-Aligned and Developing Countries Bloc:
This diverse group often holds nuanced positions. Some members align with vulnerable states seeking stronger legal clarity, while others prioritize development and economic growth, expressing caution about binding legal obligations that might constrain their industrialization.

Past UN Action

• UN General Assembly Resolution 73/333 (2019): Requested the Advisory Opinion on climate change and human rights, supporting the Vanuatu initiative.
• UNFCCC Paris Agreement (2015): Established a global framework for climate action but relies on voluntary nationally determined contributions (NDCs).
• Human Rights Council Resolution 37/8 (2018): Recognized the impact of climate change on the full enjoyment of human rights.
• UNGA Resolution 74/226 (2019): Called for enhanced international cooperation on climate change and loss and damage.
• International Law Commission’s Draft Articles on Prevention of Transboundary Harm (2001): Provide a legal foundation for state responsibility in environmental harm, relevant to climate change.

Questions a Resolution Should Answer

1. What is the scope of states’ obligations under international law to prevent climate change-related harm to other states?
2. To what extent are states legally responsible for transboundary greenhouse gas emissions and their effects?
3. Are states obligated to provide reparations or compensation for climate-related damages suffered by vulnerable countries?
4. How do existing international agreements, such as the Paris Agreement, intersect with customary international law obligations on climate change?
5. What legal standards should govern states’ cooperation and information-sharing regarding climate change mitigation and adaptation?
6. How can international law address the rights and protections of populations displaced by climate change?
7. What role should the ICJ advisory opinion play in shaping future international climate governance and dispute resolution?

Further Reading

• UN Documents: Official reports and resolutions from the UN General Assembly, Human Rights Council, and UNFCCC provide authoritative insights into the legal and political context of climate change obligations and the ICJ advisory opinion request. These include the advisory opinion request itself, relevant resolutions, and statements from key member states.

• Think-Tank Reports: Policy analyses and legal briefs from institutions such as the International Institute for Sustainable Development (IISD), the Centre for International Environmental Law (CIEL), and the Stockholm Environment Institute (SEI) offer in-depth examinations of international environmental law, state responsibility, and climate litigation trends.

• News Outlets and Media Coverage: Reputable international news sources like Reuters, Al Jazeera, and The Guardian provide up-to-date coverage on developments related to the Vanuatu initiative, ICJ proceedings, and global climate diplomacy, reflecting diverse perspectives and public reactions.

This background guide aims to equip delegates with a comprehensive understanding of the legal, political, and environmental dimensions of the ICJ advisory opinion on climate change, enabling informed and effective participation in the committee’s deliberations.