The greenhouse effect, which brings the world a series of urgent environmental problems, is increasingly drawing global attention. Due to the large consumption of fossil fuels such as coal, atmospheric carbon dioxide concentration continues to rise, and this will affect energy, ecology, water, food and environmental security, and even threaten the survival of mankind [1]. China has become the focus and main force of the world to shoulder the responsibility of reducing CO 2 emissions [2]. China has produced the most carbon emissions in the world, even in the year 2014, and its total carbon emissions run up to 11.5 billion tons, almost occupying one third of total global emissions [3]. At the end of December 2016, in the Beijing-Tianjin-Hebei region, Shandong, Henan and other places, the haze orange warning time broke the historical record and reached 200 hours. Undoubtedly, China's carbon emissions are getting more and more attention from all over the world. However, the difficulty in reducing carbon emissions is the continuing existence