A striking growth of CO2 emissions from the global cement industry driven by new facilities in emerging countries

作者：Cuihong Chen, Ruochong Xu, Dan Tong, Xinying Qin, Jing Cheng, Jun Liu, Bo Zheng, Liu Yan, Qiang Zhang · 发表于：Environmental Research Letters · 年份：2022 · DOI：10.1088/1748-9326/ac48b5 · 被引用次数：127 · 研究领域：Environmental Impact and Sustainability、Vehicle emissions and performance、Carbon Dioxide Capture Technologies

Abstract Global industrialization and urbanization processes enabled a diverse cement production boom over the past three decades, as cement is the most important building construction material. Consequently, the cement industry is the second-largest industrial CO 2 emitter (∼25% of global industrial CO 2 emissions) globally. In this study, the Global Cement Emission Database, which encompasses anthropogenic CO 2 emissions of individual production units worldwide for 1990–2019, was developed. A recently developed unit-level China Cement Emission Database was then applied to override China’s data and the combination of two databases is used to reveal the unit characteristics of CO 2 emissions and ages for global cement plants, assess large disparities in national and regional CO 2 emissions, growth rates and developmental stages from 1990–2019, and identify key emerging countries of carbon emissions and commitment. This study finds that globally, CO 2 emissions from the cement industry have increased from 0.86 Gt in 1990 to 2.46 Gt in 2019 (increasing by 186%). More importantly, the large CO 2 emissions and the striking growth rates from those emerging countries, including most of the developing countries in the Asia region and the Middle East and Africa region, are clearly identified. For example, the Middle East and Africa, including mostly developing or underdeveloped countries, only represented 0.07 Gt CO 2 in 1990 (8.4% of the total), in contrast to 0.26 Gt (10.4% of the ...