Bro those furnaces are open hearth monsters built in the 20s for mass production of the time. You cannot

You can’t put scrubbers on a coke furnace like a coal plant.

What is the cleaner way to make steel? I’ve worked at EAFs (which can only recycle steel, not make new pig iron) and I assure you they’re not any cleaner. You can scrub off-gasses all you want but at the end of the day iron is iron and coke is coke

Someone has to make steel in the world. Modern conveniences come with costs. The question is, how many sick children does it take for you to forsake your cars, tractors, appliances, bridges, buildings, and railroads?

I mean it’s Pittsburgh - the iron city - is this shocking to everyone? Did you not know steel was an inherent part of the the local economy and culture when you decided to move here from California?