So Russia is going to invade Latvia next?

The CO2 comes from adding the coke to make steel, not getting the thing hot

Right there in the article.

Joining other efforts to decarbonize the steel-production process such as those using hydrogen to refine iron ore, Boston Metal has pioneered a process known as molten oxide electrolysis (MOE).

This method of producing the metal involves combining iron ore with an electrolyte in a reactor and then using electricity instead of coke to heat the mix to about 1,600 °C (2,900 °F). Doing so causes electrons to split the bonds in the iron ore to purify it while outputting only oxygen. Not a single molecule of carbon dioxide is released during the process.