Overview
- The International Court of Justice issued an advisory opinion asserting states must limit greenhouse gas emissions, cap warming to 1.5C, and stop new fossil fuel exploration and production.
- The UK Government has publicly endorsed the ICJ advisory opinion, a move that critics say strengthens its use by litigants and domestic courts.
- Conservative leader Kemi Badenoch wrote in the Daily Mail on Saturday that she will challenge the advisory and has asked her Shadow Attorney General to review the UK’s compulsory acceptance of ICJ jurisdiction with a report due by the autumn.
- A Policy Exchange analysis and media commentary warned the advisory could open new legal claims against Britain and estimated potential reparations exposure at around £4 trillion if broad historic liability were accepted.
- Commentators point to prior international rulings, including the ECtHR climate decision on Switzerland and the ICJ Chagos opinion, as examples of non‑binding opinions shaping national policy and prompting political fallout.