In 2021–2022, the PCA (now ACA) told producers to switch to Portland Limestone Cement as the quickest way to claim a 10% CO₂ reduction. Within months, federal agencies made it the default for public projects.
In 2021–2022, the PCA (now ACA) told producers to switch to Portland Limestone Cement as the quickest way to claim a 10% CO₂ reduction. Within months, federal agencies made it the default for public projects.