Abstract
On 29 March 2023, the United Nations General Assembly (UNGA) adopted a historic resolution requesting the International Court of Justice (ICJ) to render an advisory opinion on the obligations of States with respect to climate change. Other advisory opinions on climate-related aspects are pending before the International Tribunal for the Law of the Sea (ITLOS) and the Inter-American Court of Human Rights (IACtHR). The decision to ask for ICJ advice on climate obligations and their effects is particularly groundbreaking.