Legal analysis: the carbon index actually regards the earth as a whole. For example, like a home, every member country will increase the greenhouse effect by emitting carbon dioxide into the atmosphere.

Legal basis: Article 6 of the Environmental Protection Law of People's Republic of China (PRC), all units and individuals have the obligation to protect the environment. Local people's governments at all levels are responsible for the environmental quality of their respective administrative areas. Enterprises, institutions and other producers and operators shall prevent and reduce environmental pollution and ecological damage, and shall be liable for the damage caused according to law.