Reducing GHG emissions from steel, one of the most widely used industrial materials, is a critical part of the global challenge of maintaining global temperatures to 1.5˚C. According to the U.S. Energy Information Administration, the iron and steel sector accounts for 7 percent of global CO2 emissions due to its significant use of fossil fuels, heavy industrial process emissions, and power use. By 2050, demand for steel is expected to increase by more than one-third, posing the significant challenge of decoupling emissions from the sector’s growth.