View of the logo of COP30 UN Climate Change Conference, in Belem, Para state, Brazil, taken on 6 November 2025. Photo: AFP / Ludovic Marin
The COP30 climate summit has opened in Brazil.
The U.N. climate chief has urged countries to cooperate rather than battle over priorities, as efforts to limit global warming are threatened by a fracturing international consensus.
The United States, China and India are notable absences from the summit.
Some countries, including Brazil, have suggested that countries focus on smaller efforts that do not need consensus, such as deforestation, after years of COP summits making lofty promises only to leave many unfulfilled.
So what is on the agenda and what is at stake? The Guardian's Environment Editor Fiona Harvey is in Belem, Brazil.
