Paving the Way to Cleaner Air: C02 Sequestration in Cement?

Brent Constantz is a biomineralization expert in California. (Biomineralization is so new that my spell-checker thinks I'm crazy.) By replicating a process used by the ocean's calcareous organisms (the hard-shelled fellows), Constantz is able to create cement by sucking carbon-dioxide out of the atmosphere. (Plus there's a killer chart!)