ICJ Climate Advisory Opinion Says States Face Legal Duties
Why in the news
The International Court of Justice (ICJ) gave its advisory opinion on the obligations of States in respect of climate change on 23 July 2025, on a request from the UN General Assembly.
Key facts
- Vanuatu started the push in 2021; the Court held public hearings on 2-13 December 2024.
- States have legal duties to reduce emissions and adapt under several international frameworks.
- Inaction can be an internationally wrongful act, which can lead to ending the conduct, guarantees of non-repetition and compensation.
- The opinion is non-binding yet carries weight in litigation and talks.
| Frameworks cited |
|---|
| UNFCCC and the Paris Agreement (1.5 degree C goal) |
| Montreal Protocol |
| Convention on Biological Diversity |
| UN Convention to Combat Desertification and law of the sea |
About the ICJ
Advisory opinions of the ICJ are not binding on states, but this one is expected to influence COP30 in Brazil and to support claims for loss and damage funding.
Exam angle
- Advisory opinions are not binding, a classic exam point.
- Vanuatu is the small island state that led the campaign.
- Annex I countries are expected to lead in cutting emissions and helping vulnerable states.