Industrial waste is turning to rock in just decades, research reveals
Published: 28 April 2025
Researchers from the University of Glasgow have found that slag, an industrial waste product produced by the steel industry, is turning into solid rock in as little as 35 years. In a paper published in the journal Geology, the researchers explain how detailed analysis of a two-kilometre stretch of slag deposit, at Derwent Howe in West Cumbria led to their discovery of a new Earth system cycle.