From: here@is.invalid   
      
   An electrifying new ironmaking method could slash carbon emissions   
      
   By extracting metallic iron without producing carbon dioxide, the new   
   process could even be carbon negative, at least for part of the   
   world's iron production   
      
   Making iron, the main ingredient of steel, takes a toll on Earth's   
   delicate atmosphere, producing 8% of all global greenhouse gas   
   emissions. Now, a team of chemists has come up with a way to make the   
   business much more eco-friendly. By using electricity to convert iron   
   ore and salt water into metallic iron and other industrially useful   
   chemicals, researchers report today in Joule that their approach is   
   cost effective, works well with electricity provided by wind and solar   
   farms, and could even be carbon negative, consuming more carbon   
   dioxide (CO2) than it produces.   
      
   "It's a very clever approach," says Karthish Manthiram, a chemical   
   engineer at the California Institute of Technology who was not   
   involved with the study. He notes that the process has other   
   advantages, including working at a low temperature, and being amenable   
   to working with intermittent renewable electricity. "It checks all the   
   boxes."   
      
      
   https://www.science.org/content/article/electrifying-new-ironmak   
   ng-method-could-slash-carbon-emissions   
      
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