How BAD Is Concrete’s Carbon Footprint?

ScienceDaily (May 18, 2009) — Many scientists currently think at least 5 percent of humanity’s carbon footprint comes from the concrete industry, both from energy use and the carbon dioxide (CO2) byproduct from the production of cement, one of concrete’s principal components.

http://www.sciencedaily.com/releases/2009/05/090518121000.htm