Map of the Ice Core Drilling Locations (IMAGE) University of Copenhagen Caption This is a map of the ice core drilling locations discussed in the article. Credit Center for Ice and Climate, Niels Bohr Institute, University of Copenhagen Usage Restrictions Credit: Center for Ice and Climate, Niels Bohr Institute, University of Copenhagen 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.