Tiny algae could help fix concrete's dirty little climate secret – 4 innovative ways to clean up this notoriously hard to decarbonize industry

(THE CONVERSATION) -- Humans produce more concrete than any other material on the planet. It is the literal foundation of modern civilization – and for good reason.Concrete is strong, durable, affordable and available to almost every community on the planet. However, 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. Th