FACE (IMAGE) DOE/Oak Ridge National Laboratory Caption From the left, ORNL's Joanne Childs, Colleen Iversen and Rich Norby dig soil pits and excavate roots and soil at the FACE site. Credit ORNL Usage Restrictions None License Licensed 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.