How the hydrogen revolution can help save the planet — and how it can’t

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Molten iron flows from a blast furnace in the Thyssenkrupp Steel Europe steelworks in Germany. Credit: Sean Gallup/Getty

The white-hot river of liquid iron never stops. Every hour of the day and night, at this steel plant in Sweden’s far north, the metal pours out of a hole at the bottom of a massive, 90-metre-tall blast furnace. Equally relentless, a stream of carbon dioxide belches out of the top.

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Nature 611, 440-443 (2022)

doi: https://doi.org/10.1038/d41586-022-03699-0

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