ArcelorMittal Dofasco

Environment

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Climate Change

Steel Manufacturing requires large amounts of energy that is primarily fossil-fuel based. Use of fossil fuels creates carbon dioxide, a greenhouse gas (GHG).

In the ironmaking process, the formation of greenhouse gases is a result of the chemical reaction occurring in the blast furnace between carbon and iron ore. As a result of the reactions in the blast furnace a by-product gas containing carbon monoxide, carbon dioxide, hydrogen and nitrogen is created. This “blast furnace gas” is captured and used as a fuel in a number of processes across the company.

In addition, ArcelorMittal Dofasco uses other carbon bearing by-product and fossil fuels for heating and for transportation purposes. Combustion of diesel and heavy fuel oil, natural gas, basic oxygen furnace gas and coke oven gas all contribute to greenhouse gas emissions.

ArcelorMittal Dofasco reports greenhouse emissions annually to Environment Canada and to the Ontario Ministry of the Environment.

Our internal environmental policies ensure that sustainable development principles are integrated into our planning and decision making processes. This helps us to manage resources responsibly while working to meet international agreements through the application of economically and scientifically sound approaches.

Though ArcelorMittal Dofasco’s involvement with the Canadian Industry Program for Energy Conservation (CIPEC), we continue to focus on improvements in unit energy consumption -- the most cost effective way to reduce greenhouse gas emissions while improving the competitiveness of our business.