Carbon in Oil Palm Plantation Vs Forests (IMAGE) Arizona State University Caption The blue regions are oil palm plantation; the forest regions (yellows and greens) are colored by tree height, which is a proxy for carbon. Credit Global Airborne Observatory, ASU Center for Global Discovery and Conservation Science. 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.