The International Court of Justice (ICJ) delivered a historic Advisory Opinion on Climate Change on 23 July 2025, marking a major milestone in the evolution of international environmental law. Responding to a request from the United Nations General Assembly (UNGA), the Court clarified the legal responsibilities of States to protect the climate system and the environment from the harmful effects of greenhouse gas emissions. Although the opinion is not legally binding, it carries significant persuasive authority and is expected to influence international negotiations, domestic courts, climate litigation, and future environmental governance.
This article provides a comprehensive overview of the ICJ’s 2025 Climate Change Advisory Opinion, covering the background of the case, the role of the ICJ, legal principles applied, obligations of States under the UNFCCC, Paris Agreement, UNCLOS, and customary international law, recognition of the right to a clean and healthy environment, legal consequences of non-compliance, climate reparations, due diligence standards, and the ruling’s global implications. It also explores how this landmark decision strengthens international climate governance, human rights, sustainable development, and environmental accountability, making it an essential resource for UPSC, State PCS, UGC-NET, International Relations, Environment & Ecology, Law, Public Administration, and Current Affairs aspirants.
Author: Darshita Neeraj
Senior Researcher,
Mudita Learning and Knowledge Private Limited
Email: info@muditabooks.com
Want to access the content offline?
Download our PDF now and enjoy seamless reading anytime, anywhere!