Here’s an astonishing fact: For every ton of steel that gets produced, two tons of carbon dioxide is emitted. In a world made of steel this adds up to 7 to 11 percent of global greenhouse-gas emissions. Reaching climate goals means drastically reducing the carbon footprint of how we make steel. This article gives a good overview of the key challenges of «green» steelmaking, and where we currently stand.

From Weekly Filet #399, in June 2022.