Researchers from the University of Birmingham have developed an innovative method for existing furnaces that could reduce steelmaking’s CO2 emission by nearly 90%. The iron and steel industry is a major cause of greenhouse gasses, accounting for 9% of global emissions. That’s because of the inherent carbon-intensive nature of steel production in blast furnaces, which currently represent the most-widely used practice. In blast furnace steel manufacturing, coke (a type of coal) is used to produce metallic iron from ore obtained from mining — which releases large quantities of carbon dioxide in the process. According to Dr Harriet Kildahl, who co-devised…
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