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  2. Environmental impact of concrete - Wikipedia

    en.wikipedia.org/wiki/Environmental_impact_of...

    The cement industry is one of the two largest producers of carbon dioxide (CO 2), creating up to 5% of worldwide man-made emissions of this gas, of which 50% is from the chemical process and 40% from burning fuel.

  3. Cement kiln - Wikipedia

    en.wikipedia.org/wiki/Cement_kiln

    As the main energy-consuming and greenhouse-gas–emitting stage of cement manufacture, improvement of kiln efficiency has been the central concern of cement manufacturing technology. Emissions from cement kilns are a major source of greenhouse gas emissions, accounting for around 2.5% of non-natural carbon emissions worldwide. [1]

  4. Portland cement - Wikipedia

    en.wikipedia.org/wiki/Portland_cement

    Environmental concerns are the high energy consumption required to mine, manufacture, and transport the cement, and the related air pollution, including the release of the greenhouse gas carbon dioxide, dioxin, [citation needed] NO x, SO 2, and particulates. Production of portland cement contributes about 10% of world carbon dioxide emissions. [26]

  5. Environmental impact of electricity generation - Wikipedia

    en.wikipedia.org/wiki/Environmental_impact_of...

    Greenhouse gas emissions are one of the environmental impacts of electricity generation. Measurement of life-cycle greenhouse gas emissions involves calculating the global warming potential (GWP) of energy sources through life-cycle assessment. These are usually sources of only electrical energy but sometimes sources of heat are evaluated. [5]

  6. Cement - Wikipedia

    en.wikipedia.org/wiki/Cement

    The majority of carbon dioxide emissions in the manufacture of Portland cement (approximately 60%) are produced from the chemical decomposition of limestone to lime, an ingredient in Portland cement clinker. These emissions may be reduced by lowering the clinker content of cement.

  7. Carbon capture and storage - Wikipedia

    en.wikipedia.org/wiki/Carbon_capture_and_storage

    Power plants, cement plants, and iron and steel plants produce more dilute gas streams, for which the cost of capture and compression is USD 40–120/tonne CO 2. [66] In the United States, the cost of onshore pipeline transport is in the range of USD 2–14/tonne CO 2 , and more than half of onshore storage capacity is estimated to be available ...

  8. EPA wants power plant CO2 emissions cut to slow climate ... - AOL

    www.aol.com/epa-wants-power-plant-co2-172111658.html

    The EPA’s new carbon dioxide rules would require carbon capture or green hydrogen to reduce greenhouse gases at new natural gas plants. EPA wants power plant CO2 emissions cut to slow climate ...

  9. Life-cycle greenhouse gas emissions of energy sources

    en.wikipedia.org/wiki/Life-cycle_greenhouse_gas...

    Greenhouse gas emissions are one of the environmental impacts of electricity generation. Measurement of life-cycle greenhouse gas emissions involves calculating the global warming potential (GWP) of energy sources through life-cycle assessment. These are usually sources of only electrical energy but sometimes sources of heat are evaluated. [1]