BBC: There are growing expectations that China will soon give details of its pledge to cut carbon emissions ahead of key UN climate talks at the end of the year in Paris.
As the world's biggest emitter of greenhouse gases, China's contribution is of global significance.
China announced last November, in a joint declaration with the US, that it would peak its carbon emissions by 2030. This target forms the blueprint for China's offer.
Although the core commitments are not likely to change, more...