Carbon Emission Inventory (碳排放清单 tàn pái fang qīng dān): Carbon emissions refer to the average emissions of greenhouse gases produced in producing, transporting, using, and recycling a product. The carbon emission inventory includes all the materials, industries or fields that have participated in the process of carbon emission. It is widely used in China to calculate the direct or indirect emissions of greenhouse gases produced in its social or producing activities, in hope of reducing carbon emissions.