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How to Escape From the Iron Age?
(solar.lowtechmagazine.com)
This is a most excellent place for technology news and articles.
Coal is required for steel, electricty-based heat would only work to lower carbon emissions (especially when recycling steel since you don't need coal there), but you couldn't prevent them.
"... Only work to lower carbon emissions" But thats exactly the point, that it is high emissions now.