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Page last updated at 18:18 GMT, Sunday, 6 December 2009

China's drive for a greener future

Hundreds of officials and activists have begun arriving in Copenhagen for the much anticipated climate change summit.

One of the key negotiators is China, the world's largest emitter of greenhouse gases.

It has already promised to cut its carbon emissions by at least 40% in the next decade but some of its industries are preparing for an even more energy efficient future.

Quentin Sommerville reports from South Western China.

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