The Calculation Method of Carbon Dioxide Emissions of Water Network System in Petrochemical Production Drafted by CBCSD and issued by MIIT took effect since March 1st. In 2016, CBCSD will extend this method among petrochemical enterprises. The method will benefit the enterprises in better management and identifying opportunities in reducing emission and cost, in order to achieve the comprehensive managerial goal of reserving water and energy as well as reducing carbon emissions. Meanwhile, supporting data of CO2 emission will be provided for corporate social responsibility reports.