A geological detective story told through clues written in the ice

For generations, explorers and scientists have suspected that Greenland’s massive and inhospitable ice sheet held secrets. From the 19th century adventurers whose journeys were followed by a breathless audience back home to the modern-day scientists analyzing complex data, humans have plunged into Greenland’s solitude in hopes of deciphering the mystery. They have looked on top of it and deep inside it,