# How Green Concrete Slashed Emissions Using Ancient Roman Chemistry

Page: https://stenobird.com/podcast/climate-economics-with-fexingo-carbon-pricing-green-policy-and-sustainability-costs-7871781/how-green-concrete-slashed-emissions-using-ancient-roman-chemistry
Text version: https://stenobird.com/podcast/climate-economics-with-fexingo-carbon-pricing-green-policy-and-sustainability-costs-7871781/how-green-concrete-slashed-emissions-using-ancient-roman-chemistry.md
Podcast: [Climate Economics with Fexingo: Carbon Pricing, Green Policy, and Sustainability Costs](https://stenobird.com/podcast/climate-economics-with-fexingo-carbon-pricing-green-policy-and-sustainability-costs-7871781)
Published: 2026-07-03T19:32:16+00:00
Episode link: https://audio.fexingo.com/business/climate-economics/episode-0089.mp3
Audio file: https://audio.fexingo.com/business/climate-economics/episode-0089.mp3
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JSON: https://stenobird.com/v1/public/podcasts/climate-economics-with-fexingo-carbon-pricing-green-policy-and-sustainability-costs-7871781/episodes/how-green-concrete-slashed-emissions-using-ancient-roman-chemistry
Duration seconds: 558

## Resource

Lucas and Luna dive into how a single Roman concrete recipe discovered at a 2024 MIT dig is now being scaled by a Swiss startup to cut cement emissions by 60 percent. They unpack the chemistry—volcanic ash vs. Portland cement—and the economics: why this ancient tech costs 20 percent less per ton than carbon capture on traditional concrete. A deep look at how a 2,000-year-old fix is beating modern engineering on cost and scale. Plus, why regulators in California and the EU are rewriting building codes to favour this method. No hot takes, just the numbers behind the biggest materials story you haven't heard. #GreenConcrete #RomanCement #CarbonEmissions #MIT #SwissStartup #CementIndustry #BuildingMaterials #ClimateTech #CarbonCapture #CaliforniaBuildingCode #EURegulation #ConstructionEconomics #VolcanicAsh #PortlandCement #Economics #Sustainability #FexingoBusiness #BusinessPodcast Keep every episode free: buymeacoffee.com/fexingo

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