As world leaders gather in New York for the UN General Assembly, Gideon Rachman speaks to António Guterres, secretary-general of the UN. Guterres explains why he thinks the organisation remains indispensable - as the world struggles to get to grips with an array of daunting global challenges - including war and climate change. Clip: The Guardian Free links: World must exit ‘highway to climate hell’, UN boss warns, as records are again broken China and US push each other on priorities for UN COP29 climate talks ‘Enfeebled’ UN fights for relevance in divided world Alarm raised on sea level rise and ocean warming as Pacific Islands leaders meet Nobel winners hit out at removal of fossil fuels from draft UN pact China and US push each other on priorities for UN COP29 climate talks Follow Gideon on X @gideonrachman Subscribe to The Rachman Review wherever you get your podcasts - please listen, rate and subscribe. Presented by Gideon Rachman. Produced by Fiona Symon. Sound design is by Breen Turner and Simon Panayi. Read a transcript of this episode on FT.com Hosted on Acast. See acast.com/privacy for more information.