Lessons can be learned from Japan's energy efficiency experience

The Chinese government has announced new target of cutting pollution from coal-fired power plants by 60 percent by 2020.

By upgrading the plants, China aims for a reduction in raw coal use of around 100 million metric tons, which would help improve its own environment and help contribute to a better world.

During his stay in Paris for the climate talks, Chinese President Xi Jinping reiterated China's commitment to helping in the global struggle to limit the effects of climate change.