Abstract: Plenty papers study logistics center location problems based on the perspectives of enterprises. While few scholars consider impacts of local government and logistics characteristics of different industries. Based on the logistics characteristics of steel distribution industry, a dual-objective integer-programming model is constructed both considering CO₂ emissions and logistics costs, which represents the opinions of local government. Then doubles goals model are turn into a single one model by ideal point method. The logistics center location problems of Chongqing steel distribution industry is taken as an example, and the results of logistics center locations are obtained through collecting and computing the real data from Chongqing steel distribution industry. At last tax of CO₂ emissions is calulated based on the standard of carbon tax in Australian. Results show that tax of CO₂ could not reduce CO₂ emissions effectively. Local government should adopt other City logistics methods to control CO₂ emissions effectively, such as reasonable location of logistics center, vehicle selection, speed limit, time windows and so on.

Key words: CO₂ emissions, city logistics, logistics center location problems, steel distribution industry