As thousands of delegates gather for this week's COP-30 climate summit in Brazil, the stand-off over next year's host city continues — with no agreement yet on whether Australia or Turkiye will stage COP-31. 

Adelaide is Australia's preferred choice, backed by the Federal and South Australian governments as part of a joint Australia-Pacific bid — despite debate over the financial costs and benefits.

• Guest: Mike Copage, Director of CoTerran, a new climate and security consultancy, and former head of ASPI's Climate & Security Policy Centre
• Producer: Anne Barker