Elevation contour heatmap of Greenland (IMAGE) Hokkaido University Caption A contour heat map of Greenland, indicating elevations in the region. The star indicates the southeastern dome of the Greenland Ice Sheet, where the ice core in this study was collected (Yutaka Kurosaki, Sumito Matoba, et al. Communications Earth & Environment. December 26, 2022). Credit Yutaka Kurosaki, Sumito Matoba, et al. Communications Earth & Environment. December 26, 2022 Usage Restrictions Credit must be given to the creator. License CC BY 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.