Cop28 starts today in Dubai and its already shrouded in controversy. So what can leaders agree that will make a change to the planet? And in the UK how far away are we from a greener economy? The Guardian’s John Harris is joined by Green MP Caroline Lucas and former Conservative energy minister Chris Skidmore. Help support our independent journalism at <a href="https://www.theguardian.com/politicspod">theguardian.com/politicspod</a>