President of the International Court of Justice (ICJ) Yuji Iwasawa (C) and members issue first Advisory Opinion (AO) on States' legal obligations to address climate change, in The Hague on July 23, 2025. The top UN court on July 23, 2025 described climate change as an "urgent and existential threat", as it handed down a landmark ruling on the legal obligations of countries to prevent it. (Photo by JOHN THYS / AFP)