- Humans produce more concrete than any other material on the planet.
- The global concrete industry has a dirty little secret – it alone is responsible for more than 8% of global carbon dioxide emissions – more than three times the emissions associated with aviation.
- One of the most promising short-term strategies for reducing concrete’s carbon footprint uses materials like fly ash from coal plants, slag from iron production, and calcined clay to replace some of the portland cement in concrete mixtures.
Tiny algae could help fix concrete’s dirty little climate secret
