United Nations climate chief Simon Stiell says COP31 must prove that multilateral climate cooperation still works. Speaking at the Copenhagen Climate Ministerial on May 21, 2026, he called on countries to deliver concrete outcomes in Antalya, Türkiye, in November. Key priorities include grid investment, methane cuts, and a clear roadmap for the one-point-three trillion dollar climate finance goal. Australia holds the presidency of negotiations, with Türkiye hosting the conference from November nine to twenty.