Given the increasing pressure on China to lower the emissions of carbon dioxide (CO2), as the largest manufacturing energy user and main industrial CO2emitter worldwide, the country's iron and steel industry is vital for making energy savings. Most of the existing researches have used single-sector data (i.e., cross-sectional data or data from multiple time series) to look into the driving forces of the industry's CO2emissions at the national level, typically overlooking the impacts of final demand and the relationship among industries. This study is based on the global multi-regional input-ou...