The United Nations climate summit in Paris - or COP 21 - is just around the corner. But there's a lot to get a handle on with how these negotiations actually work. You might wonder, why have they failed in the past? What is it like to be there in the room? And what are the main points of contention between countries?
To get insights into these questions, and just what we can expect from Paris, we rang up Kevin Conrad, who for 8 years represented Papua New Guinea at UN climate talks, and this year is on the delegation for Panama.