Up to 1709, furnaces could only use charcoal to produce iron. However, wood (which is what charcoal is made from) was becoming more expensive, as forests were being cleared for farmland and timber.

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With the advent of steam engines it expanded rapidly. Since the arrival of the charcoal blast furnace in the 16th century, the consumption of trees greatly increased. During the 17th century vast ...

The last molten iron will be tapped from Blast Furnace 5 this week Loud noises and large plumes of steam will be visible above the Port Talbot steelworks as one of its historic furnaces is closed ...

Tata Steel has replaced about 30,000 tonnes of fossil fuel with biochar (biomass-based charcoal ... The application in blast furnaces exceeding both 3000 m³ and 9000 tonnes per day production ...