RTCC: As the worlds biggest greenhouse gas emitter, China is critical to the success of international efforts to tackle climate change.
When softly spoken lead negotiator Su Wei held a press briefing on day four of UN climate talks in Lima, journalists hung on his every word.
China will publish its national contribution if not in the first quarter, at least in the first half of the year, said Su.
He warned there was much work to do before the world could agree a climate deal in Paris next year....