In this segment, Michael Anschel and Carl Seville look at several concrete masonry units, or CMUs, from CalStar. Not only are some of the CalStar bricks less expensive than traditional bricks, but they produce less carbon and the manufacturing process requires significantly less energy.

About the series:

Michael Anschel, CEO of Verified Green, and Carl Seville, principal at SK Collaborative, are the Green Police. In this series they scour the exhibit floor at the 2014 Greenbuild International Conference and Expo on the hunt for products you can truly call "green." Watch the duo’s antics while hearing their assessments of noteworthy products.