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This week, host Daniel Raimi talks with Mahmoud Taha, a professor and chair of the Department of Civil Engineering at the University of New Mexico. Taha is an expert on many things related to materials science; in this episode, he talks about cement, which he calls the \u201cmagic glue\u201d of construction. Taha and Raimi discuss the greenhouse gas footprint of cement, options for reducing that footprint, how the use of new materials might affect the cost and performance of cement, and government policies that can help spur innovation and speed deployment.\n\nReferences and recommendations:\n\n\u201cGood Economics for Hard Times\u201d by Abhijit V. Banerjee and Esther Duflo; https://www.goodeconomicsforhardtimes.com/\n\n\u201cSweden\u2019s HYBRIT starts operations at pilot plant for fossil-free steel\u201d in Reuters; https://www.reuters.com/article/us-sweden-steel-hydrogen/swedens-hybrit-starts-operations-at-pilot-plant-for-fossil-free-steel-idUSKBN25R1PI