Borneo peat samples (IMAGE) University of Oregon Caption University of Oregon doctoral student Monika Ruwaimana, right, collects peat core samples with team members at a site on Borneo. The team's study, published in Environmental Research Letters, resets the dating of what may the world's oldest peatlands and provides an archive of new data on climate changes in the tropical peat. Credit Photo by Dan Gavin 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.