This report by the Energy Transitions Commission (ETC) details pathways to decarbonise the steel industry by mid-century. The iron and steel industry currently emits around 2.3Gt CO2, accounting for 7 per cent of total global emissions from the energy system. However, under a business-as-usual scenario, this could grow to 3.3Gt by 2050, representing 7.5 per cent of global emissions and 34 per cent of the industry sector emissions. According to the ETC report, two of the main routes for the decarbonisation of this sector will be hydrogen-based reduction and carbon capture, combined with either storage or use. This report complements the ETC study 'Mission Possible: Reaching Net-Zero Carbon Emissions from Harder-to-Abate sectors by Mid-Century' from November 2018.