The cement and concrete industries are coming under more and more pressure to reduce the Global Warming Potential (GWP) for their products. The greatest contributor of CO2 and greenhouse gases in concrete is the portland cement. This presentation is a general review of the strategies being used today, and possibly in the future, by managers of cement plants to lower greenhouse gas emissions at manufacturing sites. These strategies include: improving plant efficiency and fuel utilization, using lower CO2 fuels, using more waste fuels, manufacturing more blended cements, and carbon capture, utilization, and storage.