UN climate summit prepares to host world leaders from more than 90 countries as scientists find global carbon emissions flatlined this year. The president of last year’s Cop30 in Brazil, the veteran Brazilian diplomat André Aranha Corrêa do Lago, is presenting his roadmap for “Transitioning Away from Fossil Fuels in Energy Systems” on a stage here in Antalya. Alongside him is the UN secretary-general, António Guterres, former US secretary of state, John Kerry, and British conservative politician, Lord Alok Sharma, who was the president of Cop26 in Glasgow.