February 2, 2026

Cement has a Serious Emissions Problem. This Startup is Solving it.

February 2, 2026

Cement production emits roughly the same amount of carbon dioxide as all of the cars in the world combined. Massachusetts startup Sublime Systems found a way to make it without its largest source of emissions. The Massachusetts startup Sublime Systems developed a new cement production system that requires no fossil fuels and eliminates the use

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Massachusetts startup Sublime Systems created a new formula that can directly replace the most widely used form of cement globally. (Image courtesy of Sublime Systems.)

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