The deal at this year's COP conference in Dubai is being hailed as "historic" because it's the first time nearly 200 countries have all acknowledged the role of fossil fuels in Climate Change. But critics says the agreement is riddled with loopholes, and that the pledge to "transition" from oil, gas, and coal is too weak.

So who's right? And what difference will this year's discussions make? Graihagh Jackson gets the low-down from COP from BBC Climate Editor Justin Rowlatt, and she talks to three leading experts on Climate Change diplomacy.

Guests:Adil Najam - Professor of International Relations, Earth and Environment at Boston University's Pardee School, USADr Musonda Mumba – Secretary General for the UN Convention on WetlandsDavid Victor - Professor of Innovation and Public Policy University of California, San Diego, USA.

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Producers: Osman Iqbal, Octavia WoodwardEditor: Simon WattsSound mix: Graham Puddifoot and Tom Brignell