Book excerpt: Now in paperback, current events get in-depth treatment in this exciting series produced in collaboration with the New York Times. First-person narratives world-renowned newspaper's award-winning journalists tell the stories behind headlines. Beginning with a white-knuckle airplane landing, Andrew C. Revkin leads readers through a land of ice and water, describing the stark beauty of the North Pole, the scientists who endure the Arctic chill, the adventurers who are drawn to the north, and the not-so-pretty realities of camping in the Arctic. Years of research, interviews, and science coverage come together to explain the phenomenon of global warming, the different perspectives on its causes and potential effects, and the implications that it holds for the frozen north.