Today is the big ceremonial day of the conference.
It is when the world leaders turn up and we get the UN climate conference “family photograph”. It will be busy, with some 120 leaders squeezing into the frame.
The majority are from developing nations. The president of Kenya, for instance, will be speaking on behalf of the Africa Group. With severe drought in the east of the continent pushing millions closer to famine and disastrous flooding, most recently in Niger, we are expecting an highly critical and emotional speech – asking developed nations to move faster on climate finance.
The leaders of France, Germany, the UK and the European Union will all be here, but the absentees are very significant too.
No Chinese, Russian or Indian leaders will be at the talks, and the US president will be stopping by on Friday not today.