There’s (admittedly comparatively expensive) alternative processes, and even if you stick to the old process and just stop using coal for electricity generation you’d cut coal use by 75%.
Not to mention, the carbon that stays in the steel doesn’t actually go into the atmosphere, so there’s less CO2 emissions for that specific use if you can substitute the fuel used for heating.
There’s (admittedly comparatively expensive) alternative processes, and even if you stick to the old process and just stop using coal for electricity generation you’d cut coal use by 75%.
Not to mention, the carbon that stays in the steel doesn’t actually go into the atmosphere, so there’s less CO2 emissions for that specific use if you can substitute the fuel used for heating.
That’s why I said met coal for steel.