China's industrial carbon dioxide emissions in manufacturing subsectors and in selected provinces

摘要

In 2009, China announced a goal to reduce its carbon dioxideintensity (CO_2/unit of gross domestic product) by 40–45 % by2020 from the 2005 level. In 2011, China established a goal ofreducing its CO_2 intensity by 17 % during the 12th Five-YearPlan period (2011–2015). Five provinces and eight cities havebeen selected to pilot low-carbon activities and are required toestablish local-level emissions inventories.The industrial sector dominates the country's energy-relatedCO_2 emissions, using two thirds of the total energy consumption.A better understanding of China's industrial energy useand CO_2 emissions at the sub-sectoral and provincial levelscan assist researchers and decision-makers in identifying thelargest areas of energy-saving and emission-reduction potential.However, previous studies have largely focused on China'senergy use and CO_2 emissions at an aggregated level. Based onpublicly-available information, this paper estimates industrialenergy-related CO_2 emissions for each manufacturing subsectorat the national level and in twelve provinces, including:Chongqing, Guangdong, Hebei, Henan, Jiangsu, Liaoning,Shaanxi, Shandong, Shanghai, Shanxi, Sichuan, and Xinjiang.This paper first explains data availability issues and discussesthe methodology as well as conversion factors used for the CO_2emissions calculations. This paper then presents the results ofthe calculation of the carbon intensity of fuel and electricity foreach manufacturing subsector and identifies the largest CO_2-emitting sub-sectors in the selected provinces. In addition,three provinces are highlighted, illustrating that economic andenergy structure play an important role in the industrial CO_2emissions within provinces. Finally, this paper discusses howto further improve carbon inventories at the sub-sectoral leveland summarizes the findings of this study in light of China'scurrent domestic carbon inventory efforts.