The historical carbon emissions of major oil, gas, coal, and cement producers will contribute to global warming for many centuries, per simulations under a range of future emissions scenarios

A new UCLA-led study finds that concrete's natural absorption of carbon dioxide is too slow and small to meaningfully offset the emissions released when cement is made. Researchers argue that the industry should prioritize active technological measures to reduce emissions, including reducing cement use and adopting alternative fuels.

Researchers developed a method to recycle cement using electric arc furnaces, significantly reducing emissions from concrete and steel production. The process can replace up to half of cement in concrete with recycled cement, producing zero-emission cement if powered by renewable energy.

Researchers propose a novel approach to reduce carbon emissions in cement manufacturing by leveraging iron naturally present in cement raw materials. The method enables the co-thermal conversion of CaCO₃ with CH₄ under a methane atmosphere, resulting in high-value syngas as a byproduct and significantly reducing carbon footprint.

Electricity-based cement production reduces energy demand by 70% and CO2 emissions by 98% compared to traditional methods. The new process uses recycled waste cement as a feedstock, further reducing emissions to 20 kilograms per ton.

RMIT's low-carbon concrete has been shown to recycle double the amount of coal ash compared to current standards, reducing cement requirements by half. The new mixture also performs exceptionally well over time, with large concrete beam prototypes meeting Australian Standards for engineering performance and environmental requirements.

Researchers have developed an electrically powered plasma heating method to produce cement without burning fossil fuels, reducing carbon emissions by nearly 100 times. The new method lowers waste heat and introduces nanoscale defects that improve the strength of cement.