Moss research in the field (IMAGE) DOE/Oak Ridge National Laboratory Caption ORNL’s Dave Weston works with instruments at the SPRUCE experiment that measure methane and carbon dioxide emissions from moss and smalls shrubs. Credit Kyle Pearson/ORNL, U.S. Dept. of Energy Usage Restrictions No restriction if credit is given 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.