Three major political camps have formed in various countries around the world. The first camp is represented by the European Union; the United States, Japan, Canada, Australia, New Zealand, Russia and other second camp countries; China and 77 other developing countries (G77) form the third camp. The three major camps are fighting against each other, and there are many conflicts within each due to different economic interests. ?The EU provides a theoretical basis for global "low-carbon politics" and becomes a pioneer in this field. It first aims to construct a scientific relationship between global climate warming and the destruction of all mankind, and then to construct a scientific relationship between human activities and climate warming. The intermediate link between human activities and the destruction of all mankind is carbon dioxide emissions. The scientific theory of the "greenhouse gas effect" that causes climate warming. Under the grand proposition of "saving all mankind", the EU actually has realistic economic interests, mainly to promote its intellectual property rights in new energy technologies. Countries within the EU that are more active in promoting a "low-carbon world" include the United Kingdom, France, Germany, and Nordic countries, which are global leaders in new energy technologies in nuclear energy, solar energy, wind energy, etc. Through technology and patent transfer, these post-industrial countries Can obtain huge economic benefits. ?With its withdrawal from the Kyoto Protocol, the United States has lost the moral high ground in global politics and ceded the right to speak about "low-carbon politics" to the Europeans. After Obama came to power, he actively promoted the development of new energy industries under the name of "low carbon", hoping to regain the right to speak in "low carbon politics." ?The Americans are unwilling to accept the current carbon politics led by Europe. They are trying to invite 15 developing countries with relatively large carbon emissions, including China, India and Brazil, to re-discuss carbon emissions under the framework of the United Nations on the basis of the G8 group. Emissions problem. The EU is also particularly worried about whether countries such as China and India will follow the United States in setting separate standards. ?Developed countries such as the European Union and the United States and developing countries such as China and India also have large differences in carbon emission reduction. The Kyoto Protocol does not make clear arrangements for developing countries to reduce emissions. However, at the Copenhagen Conference, developed countries tried to make changes and forced some "advanced developing countries" such as China, India, Brazil and other countries to also assume quantified emission reduction obligations. ?This will bring huge pressure to developing countries that are in the process of industrialization. If we assume the responsibility and obligation to reduce carbon emissions too early, it will affect China's development speed in the next few years. Therefore, China has proposed a target of reducing carbon emissions per unit of GDP by 40-50% compared with 2005 in 2020. This is a different concept from the reduction of total carbon emissions proposed by countries such as the European Union, Japan and the United States. The carbon emissions per unit of GDP are two different concepts. Reduction does not mean a reduction in total carbon emissions. GDP growth data is affected by the Chinese government’s policies at different times, and the leadership lies in China’s hands.