Low/Negative-GHG Cement

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The production of cement, a key ingredient in the concrete that forms the basis of much of our infrastructure, is responsible for about 5% of global greenhouse gas emissions, half from the energy used to power it and half from the carbon dioxide released during the conversion process itself. Opportunities for significant emissions reductions in cement production include CO2 capture and storage; the development of low cost, low-emission substitutes for cement/concrete, and the development of processes and materials that actually consume CO2 as opposed to generating it in cement or cement-replacement production—thereby enabling emissions-negative cement production.