Paleoclimatologist and Comer Fellow Gina Moseley led a team of scientists to Greenland’s northernmost caves, including the Wulff Land Cave (shown here). They were searching for geological time capsules—mineral specimens called speleothems that hold the climate history of a distant, warmer past.
Read the National Geographic story by Yudhijit Bhattacharjee with stunning photographs by Robbie Shone.