Production of concrete, the worlds most used building material is a major contributor to total global carbon emissions each year. On this episode of Policy Outsider, Matt Adams, a Richard P. Nathan fellow at the Rockefeller institute, and Nicola Armacost, mayor of the village of Hastings-on-Hudson, in Westchester County, NY, join host Alexander Morse to discuss a local policy initiative in Hastings-on-Hudson aimed at promoting low-carbon concrete. The conversation, which builds on a recent policy brief, also touches on the role local, state, and federal governments can play in reducing carbon dioxide emissions from concrete.