An Input-output Model to Analyze Sector Linkages and CO2 Emissions

International negotiations of reducing CO2 emissions address the question of how to account annual CO2 emissions of each sector of one city. The aim of this study is to establish the CO2 inventories focused on the supply chain emissions of CO2 emissions form each sector, e.g. agriculture, industry, transportation and tertiary industry. And to categorize upstream emission sources to identify the significant sectors that contribute the most to climate change. Moreover, IO-LCA method is chosen to evaluate the upstream carbon footprint and carbon dioxide emissions intensity of 28 economic sectors of Chongqing from 2002 to 2007. CO2 emissions the top-3 of which includes Transportation Equipment, Smelting and Pressing of Metals, Electricity, Steam Production and Supply, and CO2 emissions density the top-3 of which includes Coal Mining and Dressing, Nonmetal Minerals Mining and Dressing, Petroleum, Coking and Nuclear Fuel Processing.

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