Discover the North Pole and the arctic ice that covers the ocean water there. Learn about historical expeditions, and the recent one the author joined and where these chapters were written.

In the late nineteenth century, people were obsessed by one of the last unmapped areas of the globe: the North Pole. No one knew what existed beyond the fortress of ice rimming the northern oceans, although theories abounded. The foremost cartographer in the world, a German named August Petermann, believed that warm currents sustained a verdant island at the top of the world. National glory would fall to whoever could plant his flag upon its shores....

"The human story has always been one of perseverance--often against remarkable odds. The most astonishing survival tale of all might be that of 16th-century Dutch explorer William Barents and his crew of sixteen, who ventured farther north than any Europeans before and, on their third polar exploration, lost their ship off the frozen coast of Nova Zembla to unforgiving ice. The men would spend the next year fighting off ravenous polar bears, gnawing...

"A riveting, urgent account of the explorers and scientists racing to understand the rapidly melting ice sheet in Greenland, a dramatic harbinger of climate change. Greenland: a remote, mysterious island five times the size of California but with a population of just 56,000. The ice sheet that covers it is 700 miles wide and 1,500 miles long, and is composed of nearly three quadrillion tons of ice. For the last 150 years, explorers and scientists...