Tag: Brimstone

Since launching in 2019, the U.S. startup Brimstone has positioned itself as a pioneering producer of low-carbon cement. The company’s technology can make the essential material without using any limestone — the carbon-rich rock that, when heated up in fiery kilns, releases huge amounts of planet-warming gases into the air. Now, Brimstone is looking to use its … Continue reading “Clean cement startup Brimstone can make another key material: alumina”