Since the Iron Age (around 1200 BC), iron ore has been heated and melted using a great deal of energy in order to obtain pure iron. A few more ingredients and you get steel - somewhat simplified.

Researchers have shown that carbon dioxide can be electrochemically converted into solid carbon in molten lithium-potassium ...

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Soil is the largest terrestrial carbon reservoir, holding more carbon than the atmosphere and all plant life combined. For decades, scientists have recognized that iron minerals act as a "rusty sink," ...