Widespread Peat (IMAGE) Columbia Climate School Caption Map of sampled northern peatlands. Each white square indicates a grid where at least one sample with a basal age exists. Black dots indicate samples with additional information on depth. Because there are fewer samples from Asia and Eastern Europe, previous estimates of peatland carbon storage are believed to have been biased. Credit Adapted from Nichols and Peteet, 2019. Usage Restrictions Credit must be given. 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.