Nearly three decades since the United Nations climate talks began, we take a look at what it has achieved when it comes to tackling climate change. We also look towards COP 28 taking place in Dubai and ask what progress can be made at the latest round of negotiations. It’s the only international negotiation on climate change and a unique opportunity to get agreement on how to best tackle global warming – but it has its critics as well as its fans. Joining Graihagh Jackson and Jordan Dunbar are - Adil Najam - Professor of International Relations, Earth and Environment at Boston University's Pardee School, USA Dr Musonda Mumba – Secretary General for the Convention on Wetlands David Victor - Professor of Innovation and Public Policy University of California, San Diego, USA. Email us: theclimatequestion@bbc.com Researchers – Barry Sadid and Shorouk Elkoboros Series Producer – Alex Lewis Editor - China Collins Sound Engineer - Tom Brignell