We have all seen the pictures of forlorn polar bears perched on tiny icebergs amid open water. The sea ice, which covers an area of ocean larger than the whole of the United States, is melting away, and the Arctic summer ice appears to be disappearing for good. Research biologist turned journalist Anderson combines science, business, politics, and adventure to take the reader to the ends of the earth and reveals the ways in which global warming is changing the Arctic faster and more dramatically than any place else on earth.