Climate Justice Last Verified: 2026-07-30 | Author: Kateule Sydney | Published by E-cyclopedia Resources | Topic: Climate Justice Climate justice recognizes that climate impacts are not felt equally across communities Summary: Climate justice recognises that climate change affects communities differently, with those least responsible often bearing the heaviest burden. It demands fair distribution of climate burdens and benefits, inclusive decision-making, and accountability through international law, with the ICJ's 2025 Advisory Opinion and UNGA Resolution marking a turning point in legal recognition. Table of Contents Chapter 1 — What is Climate Justice: Dimensions and Definitions Chapter 2 — The ICJ Advisory Opinion: A Legal Turning Point for Climate Justice Chapter 3 — Loss and Damage: The Financial Pillar of Climate Justice Chapter 4 — Climate Litigation: Holding Polluters Accountable FAQ Chapter 1 — W...
International Court of Justice
Last Verified: 2026-07-30 | Author: Kateule Sydney | Published by E-cyclopedia Resources | Topic: International Court of Justice
The Peace Palace in The Hague, seat of the International Court of Justice
Summary: The International Court of Justice (ICJ) is the principal judicial organ of the United Nations, established in 1945 to settle legal disputes between States and provide advisory opinions on legal questions. Composed of 15 judges elected by the UN General Assembly and Security Council, the Court sits at the Peace Palace in The Hague and has delivered landmark rulings on genocide, climate change, and territorial sovereignty.
Table of Contents
Chapter 1 — The Principal Judicial Organ of the United Nations
1.1 Establishment, Composition, and Core Functions
The International Court of Justice is the principal judicial organ of the United Nations, established by the UN Charter in June 1945 and commencing operations in April 1946. It is the only one of the six principal UN organs not located in New York, with its seat at the Peace Palace in The Hague, Netherlands. The Court is composed of 15 judges elected for nine-year terms by the UN General Assembly and the Security Council, with no two judges from the same State. Its official languages are English and French, and it fulfills a dual role: settling legal disputes between States submitted to it, and providing advisory opinions on legal questions referred by authorized UN organs and specialized agencies.
Key features of the Court's structure and role:
- Composition: 15 independent judges elected based on qualifications and representation of principal legal systems
- Contentious jurisdiction: Only States may be parties to proceedings; individuals and NGOs cannot appear
- Advisory jurisdiction: UN General Assembly, Security Council, and specialized agencies may request opinions
- Binding decisions: Judgments in contentious cases are final, without appeal, and binding on the parties
Case Study — 80th Anniversary of the Court: On 17 April 2026, the ICJ held a solemn sitting to celebrate its eightieth anniversary, attended by His Majesty King Willem-Alexander of the Netherlands, UN Secretary-General António Guterres, and other dignitaries. The Court's 80-year history includes landmark cases from the Corfu Channel (first judgment in 1949) to recent climate advisory opinions and genocide proceedings. The anniversary also marked the election of Mr Santiago Villalpando as Registrar for a seven-year term, succeeding Philippe Gautier, demonstrating the Court's continued institutional renewal.
Chapter 2 — Contentious Jurisdiction: Settling Disputes Between States
2.1 The Genocide Convention Cases: Ukraine v. Russia and South Africa v. Israel
The Court's contentious jurisdiction has been tested in some of the most significant international disputes of the 21st century. Only States may appear before the Court in contentious cases, and jurisdiction requires the consent of the parties—expressed through special agreement, treaty clauses, or unilateral declarations. The Court's judgments are binding and final, with no appeal. Recent genocide cases under the Convention on the Prevention and Punishment of the Crime of Genocide have placed the Court at the center of international accountability efforts, though enforcement remains a challenge under the UN Charter's Article 94.
Key aspects of contentious jurisdiction:
- State consent: The Court cannot hear disputes unless States have accepted its jurisdiction, preserving the principle of sovereign equality
- Human rights treaties: Cases brought under the Genocide Convention, CERD, and the Torture Convention have increased significantly
- Intervention: Third States may intervene under Article 63 of the Statute to present their views on treaty interpretation
- Counter-claims: Respondents may file counter-claims that are directly connected to the principal claim
Case Study — Ukraine v. Russia (Allegations of Genocide): Ukraine instituted proceedings on 26 February 2022, two days after Russia launched its "special military operation," seeking to establish that no genocide had occurred in the Donbas region and that Russia's actions had no basis in the Genocide Convention. The Court issued provisional measures on 16 March 2022 ordering Russia to suspend military operations. In February 2024, the Court found it had jurisdiction over Ukraine's claim regarding its own compliance with the Genocide Convention, but not over claims regarding Russia's use of force. The case now proceeds to the merits, with counter-claims filed by Russia in November 2024 and admissibility proceedings ongoing. Over 30 States intervened under Article 63 of the Statute, making it one of the most heavily litigated cases in the Court's history.
Chapter 3 — Advisory Opinions: Clarifying International Law
3.1 The Landmark Climate Change Advisory Opinion of 2025
The Court's advisory jurisdiction, while non-binding, carries enormous legal authority and influences judicial reasoning worldwide. Authorized UN organs and specialized agencies may request advisory opinions on legal questions. On 23 July 2025, the ICJ delivered a landmark advisory opinion on the obligations of States in respect of climate change, responding to a UN General Assembly request supported by 132 Member States and characterized by the highest participation in any ICJ proceeding in history. The Court clarified that States' obligations derive from multiple sources—not only the climate change treaties but also customary international law, human rights law, and the law of the sea.
Key findings of the 2025 Advisory Opinion:
- 1.5°C goal: The Paris Agreement's temperature goal of limiting warming to 1.5°C is legally binding as a standard of conduct
- Due diligence: States must exercise due diligence in regulating private actors' GHG emissions
- State responsibility: Breaches of climate obligations trigger legal consequences, including cessation of wrongful conduct and reparation
- Sea-level rise: Maritime baselines remain valid even with physical changes; statehood is not automatically lost
Case Study — From Pacific Law Students to Global Legal Clarification: The advisory opinion journey began with Pacific Island law students who transformed their lived experience of the climate crisis into a global call for justice. Vanuatu and other small island developing States led the diplomatic campaign that culminated in the UN General Assembly's request for an ICJ opinion. The Court accepted the IPCC's reports as "the best available science" and held that "it is scientifically established that the increase in concentration of GHGs in the atmosphere is primarily due to human activities." The opinion has been welcomed by courts worldwide, including the European Court of Human Rights and domestic courts in Brazil and the Netherlands, demonstrating the advisory opinion's authoritative influence.
Chapter 4 — Provisional Measures and the Evolving Role of the Court
4.1 The Growing Importance of Provisional Measures in Protecting Human Rights
The Court has experienced an unprecedented increase in requests for provisional measures, particularly in cases involving human rights treaties and armed conflict. The purpose of provisional measures is to preserve the rights claimed by States pending the Court's final decision, and the Court exercises this power only when there is a real and imminent risk of irreparable prejudice. Since the LaGrand case in 2001, the Court has affirmed that orders indicating provisional measures are binding and create legal obligations upon States. This trend reflects the Court's evolving recognition of individuals as the ultimate beneficiaries of human rights treaties.
Key developments in provisional measures practice:
- Human rights protection: The Court has recognized that prejudice to rights under CERD, the Torture Convention, and the Genocide Convention is capable of causing irreparable harm
- Binding character: Provisional measures orders are legally binding on the parties, as confirmed in the LaGrand case
- Armed conflict contexts: States increasingly turn to the Court even in times of war, seeking protection from imminent harm
- Humanitarian access: The Court has ordered States to facilitate humanitarian assistance and protect the rights of displaced persons
Case Study — South Africa v. Israel (Genocide Convention): In the case concerning the Application of the Convention on the Prevention and Punishment of the Crime of Genocide in the Gaza Strip, the Court indicated multiple rounds of provisional measures. On 26 January 2024, it ordered Israel to take all measures within its power to prevent acts of genocide, including killing members of the group, causing serious bodily or mental harm, and imposing conditions of life calculated to bring about physical destruction. The Court also ordered Israel to enable the provision of urgently needed humanitarian assistance. In May 2024, the Court further ordered Israel to "immediately halt its military offensive, and any other action in the Rafah Governorate." Israel has not complied with these orders, highlighting the enforcement challenges the Court faces and the gap between legal ruling and political reality.
FAQ: International Court of Justice Questions Answered
What is the difference between the ICJ and the International Criminal Court?
The ICJ settles legal disputes between States, while the ICC prosecutes individuals for war crimes, crimes against humanity, and genocide. The ICJ cannot try individuals and has no prosecutor; it only hears cases brought by States or gives advisory opinions.
Are International Court of Justice judgments binding?
Yes, ICJ judgments in contentious cases are final, without appeal, and binding on the parties under Article 94 of the UN Charter. However, the Court has no enforcement mechanism; the UN Security Council may take action to enforce judgments, but this is subject to the veto.
Can individuals or NGOs bring cases to the International Court of Justice?
No. Only States may be parties to contentious proceedings before the ICJ. Individuals, NGOs, and corporations cannot appear before the Court. However, a State may take up a case on behalf of one of its nationals, making the dispute one between States.
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