Portland Cement Association’s Roadmap to Carbon Neutrality by 2050 lays out the cement and concrete industry’s commitment to a lower carbon future and how that will be attained. This effort includes both current and emerging technologies to reduce CO2 while continuing to serve the needs of designers, builders, and owners. Today, after decades of research and use in other parts of the world, portland-limestone cements (PLCs) are being embraced by the US and Canada as a ready-to-implement change to lower concrete’s initial CO2 footprint.