One of the least known and least inhabited parts of the world, Greenland is a singular place on Earth from which to look for the future of our planet and question its history. Glaciologist Marco Tedesco, a world-leading expert on ice and on climate change, takes us along as he and his fellow researchers conduct all-important measurements to understand the dramatic changes afoot on the immense polar ice cap. Following the arc of a typical day as a working scientist, Tedesco tells us about improbable “polar camels,” cryoconite holes (the only place where life grows in the icy expanse), and gigantic meteorite debris. We also learn of the epic deeds of the great Arctic explorers (both men and, perhaps surprisingly, women) and about legends of the rare local populations. A Day at the Top of the World offers a vantage point on the future from a place in which temperatures are rising at double the average rate of the rest of the planet.