Low-carbon materials (IMAGE) DOE/Oak Ridge National Laboratory Caption Low-carbon building materials that could be deployed within five years will be displayed on the National Mall. Credit Carlos Jones/ORNL, U.S. Dept. of Energy Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.