Massachusetts startup Sublime Systems has developed a new cement production system, Sublime Cement, that eliminates the use of fossil fuels and carbon-heavy limestone, significantly reducing the carbon footprint of cement production. Meeting the ASTM Code C1157 standard, Sublime Cement has a lower global warming potential compared to Ordinary Portland Cement, gaining support from leading companies like Microsoft. The building industry is shifting towards sustainable products, with Sublime's distribution channel partner program connecting contractors with low-carbon materials. Despite challenges, new decarbonization pathways such as calcined clay and photosynthetic microalgae are emerging globally, indicating a growing trend towards sustainable cement production.
https://triplepundit.com/2025/sublime-systems-cement-carbon-dioxide-emissions/