SCII can provide technical consulting services for the compilation of domestic provinces, municipalities and counties of greenhouse gas inventories. Through accounting for the total annual greenhouse gas emissions, local government can comprehensively grasp the key emission departments, industries and enterprises in the inventory compilation area, and sort out the status and carbon reduction measures of each level. Effective carbon reduction paths and suggestions are proposed according to the emission characteristics of each level. At the same time, it will help build local capacity to deal with climate change, and provide a scientific and effective basis for government departments to grasp changes in urban carbon emissions trends, strengthen macro-control and regulatory decisions.