Iron ore is crushed to a fine powder and combined with coke in a blast furnace. This mixes carbon from coke (basically, coal) with iron oxide, creating pig iron. <\/p>\n\n\n\n

The molten pig iron is poured into molds to create shapes like bars or pipes; it\u2019s then cooled down and further refined into cast iron or steel. It\u2019s an energy-intensive process, as you can imagine. <\/p>\n\n\n\n

For each ton of iron produced, approximately two tons of carbon dioxide are released into the atmosphere\u2014and those numbers only increase as you move up production scales. <\/p>\n\n\n\n

For example, producing one ton of crude steel generates five tons of CO2 emissions.<\/p>\n\n\n\n

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